{"id":250261,"date":"2022-05-26T11:07:45","date_gmt":"2022-05-26T10:07:45","guid":{"rendered":"https:\/\/blog.jetbrains.com\/kotlin\/2022\/05\/kotlin-1-7-0-beta\/"},"modified":"2022-05-30T11:53:22","modified_gmt":"2022-05-30T10:53:22","slug":"kotlin-1-7-0-beta","status":"publish","type":"kotlin","link":"https:\/\/blog.jetbrains.com\/zh-hans\/kotlin\/2022\/05\/kotlin-1-7-0-beta\/","title":{"rendered":"Kotlin 1.7.0-Beta \u73b0\u5df2\u53d1\u5e03"},"content":{"rendered":"\n<p>1.7.0 \u7684\u9996\u4e2a\u9884\u89c8\u7248\u73b0\u5df2\u53d1\u5e03\u3002&nbsp;\u9686\u91cd\u63a8\u51fa Kotlin 1.7.0-Beta\uff01&nbsp;\u6b64\u9884\u89c8\u7248\u7684\u4e00\u4e9b\u4eae\u70b9\uff1a<\/p>\n\n\n\n<ul><li>\u6784\u5efa\u5668\u63a8\u65ad\u53d8\u66f4\u3002<\/li><li>min() \u548c max() \u96c6\u5408\u51fd\u6570\u56de\u5f52\u3002<\/li><li>\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u7c7b\u578b\u5f97\u5230\u7a33\u5b9a\u3002<\/li><li>\u65b0\u7248 Kotlin\/Native \u5185\u5b58\u7ba1\u7406\u5668\u66f4\u65b0\u3002<\/li><\/ul>\n\n\n\n<p>\u5b89\u88c5 1.7.0-Beta \u4ee5\u8bd5\u7528\u8fd9\u4e9b\u529f\u80fd\u5e76<a href=\"https:\/\/kotl.in\/issue\" target=\"_blank\" rel=\"noopener\">\u62a5\u544a\u60a8\u53d1\u73b0\u7684\u4efb\u4f55\u95ee\u9898<\/a>\u4ee5\u5e2e\u52a9\u6211\u4eec\u6539\u8fdb Kotlin 1.7.0\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u5c06\u5728\u540e\u7eed\u535a\u6587\u4e2d\u4ecb\u7ecd\u5176\u4ed6\u4ee4\u4eba\u5174\u594b\u7684\u529f\u80fd\u3002&nbsp;\u656c\u8bf7\u5173\u6ce8\uff01<\/p>\n\n\n\n<p align=\"center\"><a class=\"ek-link jb-download-button\" title=\"\u5b89\u88c5 Kotlin 1.7.0-Beta\" href=\"https:\/\/blog.jetbrains.com\/kotlin\/2022\/05\/kotlin-1-7-0-beta\/#try-new-features\">\u5b89\u88c5 Kotlin 1.7.0-Beta<\/a><\/p>\n\n\n\n<p>\u4ece 1.7.0 \u5f00\u59cb\uff0c\u6211\u4eec\u66f4\u65b0\u4e86\u6211\u4eec\u7684\u53d1\u5e03\u8282\u594f\u672f\u8bed\uff1a\u5c06\u201cMilestone\u201d\uff08\u91cc\u7a0b\u7891\uff09\u66f4\u6539\u4e3a\u201cBeta\u201d\uff08\u6d4b\u8bd5\u7248\uff09\u3002&nbsp;\u8fd9\u4e00\u51b3\u5b9a\u80cc\u540e\u6709\u51e0\u4e2a\u539f\u56e0\uff1a<\/p>\n\n\n\n<ul><li>\u6211\u4eec\u5e0c\u671b Kotlin \u6784\u5efa\u672f\u8bed\u66f4\u52a0\u7b26\u5408\u8f6f\u4ef6\u53d1\u5e03\u5468\u671f\u7684<a href=\"https:\/\/en.wikipedia.org\/wiki\/Software_release_life_cycle#Beta\" target=\"_blank\" rel=\"noopener\">\u6807\u51c6\u672f\u8bed<\/a>\u3002&nbsp;\u66f4\u51c6\u786e\u5730\u8bf4\uff0c\u201cBeta\u201d\u610f\u5473\u7740\u6211\u4eec\u5411\u8be5\u7279\u5b9a\u7248\u672c\u4e2d\u6dfb\u52a0\u65b0\u529f\u80fd\u7684\u5de5\u4f5c\u5df2\u7ecf\u5b8c\u6210\uff0c\u5e76\u4e14\u6b63\u5728\u81f4\u529b\u4e8e\u7a33\u5b9a\u5de5\u4f5c\u3002&nbsp;\u4e0d\u8fc7\uff0c\u6211\u4eec\u4e5f\u4f1a\u5b9e\u73b0\u6700\u7ec8\u53d8\u66f4\uff0c\u5305\u62ec\u57fa\u4e8e\u7528\u6237\u53cd\u9988\u7684\u53d8\u66f4\u3002<\/li><li>\u524d\u6bb5\u65f6\u95f4\uff0cM-release \u7f16\u8bd1\u5668\u4e00\u76f4\u5728\u751f\u6210\u201c\u9884\u53d1\u5e03\u201d\u4ee3\u7801\uff0c\u8fd9\u4f7f\u5f97\u8fd9\u4e9b\u7248\u672c\u66f4\u96be\u6d4b\u8bd5\u3002&nbsp;\u73b0\u5728\u5b8c\u5168\u4e0d\u4e00\u6837\u4e86\u3002&nbsp;\u6211\u4eec\u5e0c\u671b\u907f\u514d\u4efb\u4f55\u6df7\u6dc6\uff0c\u5e76\u5f3a\u8c03\u8bd5\u7528 Kotlin Beta \u7248\u672c\u7684\u8fc7\u7a0b\u5c06\u5341\u5206\u7b80\u5355\uff0c\u5e76\u4e14 Kotlin \u56e2\u961f\u975e\u5e38\u9f13\u52b1\u5927\u5bb6\u8bd5\u7528\u8fd9\u4e00\u7248\u672c\u3002<\/li><li>\u6700\u540e\u4f46\u540c\u6837\u91cd\u8981\u7684\u4e00\u70b9\u662f\uff0c\u201cBeta\u201d\u4e00\u8bcd\u672c\u8eab\u5c31\u6709\u547c\u5401\u793e\u533a\u63d0\u4f9b\u53cd\u9988\u7684\u610f\u5473\u3002&nbsp;\u501f\u6b64\u672f\u8bed\uff0c\u6211\u4eec\u60f3\u8ba9\u60a8\u77e5\u9053\u6211\u4eec\u5e0c\u671b\u60a8\u80fd\u4e0e\u6211\u4eec\u5206\u4eab\u53cd\u9988\u3002<\/li><\/ul>\n\n\n\n<p>\u8bf7\u8bc4\u4f30 Kotlin 1.7.0-Beta \u5e76\u5728&nbsp;<a href=\"https:\/\/kotl.in\/issue\" target=\"_blank\" rel=\"noopener\">YouTrack<\/a>&nbsp;\u548c&nbsp;<a href=\"https:\/\/kotlinlang.slack.com\/archives\/C0KLZSCHF\" target=\"_blank\" rel=\"noopener\">Slack<\/a>\uff08\u5bf9\u4e8e Slack \u65b0\u6210\u5458\uff1a\u8bf7<a href=\"https:\/\/surveys.jetbrains.com\/s3\/kotlin-slack-sign-up\" target=\"_blank\" rel=\"noopener\">\u7533\u8bf7\u53d7\u9080<\/a>\uff09\u4e0a\u4e0e\u6211\u4eec\u5206\u4eab\u60a8\u7684\u53cd\u9988\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6784\u5efa\u5668\u63a8\u65ad\u53d8\u66f4<\/h2>\n\n\n\n<p>\u6784\u5efa\u5668\u63a8\u65ad\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7c7b\u578b\u63a8\u65ad\uff0c\u5728\u8c03\u7528\u6cdb\u578b\u6784\u5efa\u5668\u51fd\u6570\u65f6\u5f88\u6709\u5e2e\u52a9\u3002&nbsp;\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7f16\u8bd1\u5668\u63a8\u65ad\u8c03\u7528\u7684\u7c7b\u578b\u5b9e\u53c2\uff0c\u65b9\u6cd5\u662f\u4f7f\u7528\u5176 lambda \u5b9e\u53c2\u4e2d\u5176\u4ed6\u8c03\u7528\u7684\u76f8\u5173\u7c7b\u578b\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>Kotlin 1.7.0-Beta \u4e2d\u5305\u542b\u4e86\u9488\u5bf9\u6784\u5efa\u5668\u63a8\u65ad\u7684\u66f4\u591a\u53d8\u66f4\u3002&nbsp;\u8fd9\u4e9b\u53d8\u66f4\u4f7f\u6211\u4eec\u7684\u6784\u5efa\u5668\u63a8\u65ad\u8d8b\u4e8e\u7a33\u5b9a\uff0c\u6211\u4eec\u5728<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-45618\/Stabilize-builder-inference\" target=\"_blank\" rel=\"noopener\">\u8def\u7ebf\u56fe<\/a>\u4e2d\u7684\u4efb\u52a1\u4e4b\u4e00\u4e5f\u8d8b\u4e8e\u5b8c\u6210\u3002<\/p>\n\n\n\n<p>\u5728\u6b64\u7248\u672c\u4e2d\uff0c\u5982\u679c\u5e38\u89c4\u7c7b\u578b\u63a8\u65ad\u65e0\u6cd5\u83b7\u5f97\u6709\u5173\u7c7b\u578b\u7684\u8db3\u591f\u4fe1\u606f\uff0c\u5219\u65e0\u9700\u6307\u5b9a&nbsp;<code>-Xenable-builder-inference<\/code>&nbsp;\u7f16\u8bd1\u5668\u9009\u9879\uff08\u6211\u4eec<a href=\"https:\/\/kotlinlang.org\/docs\/whatsnew16.html#changes-to-builder-inference\" target=\"_blank\" rel=\"noopener\">\u5728 1.6.0 \u7248\u672c\u4e2d\u5f15\u5165<\/a>\uff09\uff0c\u5373\u53ef\u81ea\u52a8\u6fc0\u6d3b\u6784\u5efa\u5668\u63a8\u65ad\u3002<\/p>\n\n\n\n<p>\u8fd9\u610f\u5473\u7740\u73b0\u5728\u60a8\u65e0\u9700\u5e94\u7528\u4efb\u4f55\u989d\u5916\u7684\u6ce8\u89e3\u6216\u9009\u9879\uff0c\u5373\u53ef\u7f16\u5199\u81ea\u5df1\u7684\u4f7f\u7528\u6784\u5efa\u5668\u7c7b\u578b\u63a8\u65ad\u7684\u6784\u5efa\u5668\u3002&nbsp;<a href=\"https:\/\/kotlinlang.org\/docs\/using-builders-with-builder-inference.html\" target=\"_blank\" rel=\"noopener\">\u4e86\u89e3\u5982\u4f55\u7f16\u5199\u81ea\u5b9a\u4e49\u901a\u7528\u6784\u5efa\u5668<\/a>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">min() \u548c max() \u96c6\u5408\u51fd\u6570\u56de\u5f52<\/h2>\n\n\n\n<p>\u5728\u00a0<a href=\"https:\/\/kotlinlang.org\/docs\/whatsnew14.html#collections\" target=\"_blank\" rel=\"noopener\">Kotlin 1.4<\/a>\u00a0\u4e2d\uff0c\u6211\u4eec\u5c06\u00a0<code>min()<\/code>\u00a0\u548c\u00a0<code>max()<\/code>\u00a0\u96c6\u5408\u51fd\u6570\u91cd\u547d\u540d\u4e3a\u00a0<code>minOrNull()<\/code>\u00a0\u548c\u00a0<code>maxOrNull()<\/code>\u3002\u00a0\u8fd9\u4e9b\u65b0\u7684\u540d\u79f0\u80fd\u591f\u66f4\u597d\u5730\u53cd\u6620\u5b83\u4eec\u7684\u884c\u4e3a \u2013 \u5982\u679c\u63a5\u6536\u5668\u96c6\u5408\u4e3a\u7a7a\uff0c\u5219\u8fd4\u56de\u00a0<code>null<\/code>\u3002\u00a0\u5b83\u8fd8\u6709\u52a9\u4e8e\u4f7f\u51fd\u6570\u7684\u884c\u4e3a\u4e0e\u6574\u4e2a Kotlin Collections API \u4e2d\u4f7f\u7528\u7684\u547d\u540d\u60ef\u4f8b\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n\n\n\n<p><code>minBy()<\/code>\u3001<code>maxBy()<\/code>\u3001<code>minWith()<\/code>\u00a0\u548c\u00a0<code>maxWith()<\/code>\u00a0\u540c\u6837\u5982\u6b64\uff0c\u5728 Kotlin 1.4 \u4e2d\u5747\u5177\u6709\u81ea\u5df1\u7684\u00a0<code>*OrNull()<\/code>\u00a0\u540c\u4e49\u8bcd\u3002\u00a0\u53d7\u6b64\u53d8\u66f4\u5f71\u54cd\u7684\u65e7\u51fd\u6570\u5df2\u9010\u6e10\u5f03\u7528\u3002<\/p>\n\n\n\n<p>Kotlin 1.7.0-Beta \u91cd\u65b0\u5f15\u5165\u4e86\u539f\u59cb\u7684\u51fd\u6570\u540d\u79f0\uff0c\u4f46\u52a0\u5165\u4e86\u4e0d\u53ef\u7a7a\u8fd4\u56de\u7c7b\u578b\u3002&nbsp;\u73b0\u5728\uff0c\u66f4\u65b0\u540e\u7684&nbsp;<code>min()<\/code>\u3001<code>max()<\/code>\u3001<code>minBy()<\/code>\u3001<code>maxBy()<\/code>\u3001<code>minWith()<\/code>&nbsp;\u548c&nbsp;<code>maxWith()<\/code>&nbsp;\u4f1a\u4e25\u683c\u8fd4\u56de\u96c6\u5408\u5143\u7d20\u6216\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun main() {\n    val numbers = listOf&lt;int&gt;()\n    println(numbers.maxOrNull()) \/\/ &quot;null&quot;\n    println(numbers.max()) \/\/ &quot;Exception in\u2026 Collection is empty.&quot;\n}\n<\/pre><\/int>\n\n\n\n<p>\u8bf7\u53c2\u89c1<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-38854\" target=\"_blank\" rel=\"noopener\">\u6b64 YouTrack \u95ee\u9898<\/a>\u4ee5\u4e86\u89e3\u8be6\u60c5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u7c7b\u578b\u5f97\u5230\u7a33\u5b9a<\/h2>\n\n\n\n<p>Kotlin 1.7.0 \u5c06\u5177\u6709\u7a33\u5b9a\u7684\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u7c7b\u578b\uff0c\u8fd9\u4e9b\u7c7b\u578b\u662f<a href=\"https:\/\/kotlinlang.org\/docs\/whatsnew1620.html#definitely-non-nullable-types\" target=\"_blank\" rel=\"noopener\">\u5728 Kotlin 1.6.20 \u4e2d\u5f15\u5165<\/a>\u7684\u3002<\/p>\n\n\n\n<p>\u6dfb\u52a0\u8fd9\u4e9b\u7c7b\u578b\u7684\u76ee\u7684\u662f\u5728\u6269\u5c55\u6cdb\u578b Java \u7c7b\u548c\u63a5\u53e3\u65f6\u63d0\u4f9b\u66f4\u597d\u7684\u4e92\u64cd\u4f5c\u6027\u3002<\/p>\n\n\n\n<p>\u81ea Kotlin 1.6.20 \u8d77\uff0c\u60a8\u5df2\u7ecf\u80fd\u591f\u4f7f\u7528\u65b0\u8bed\u6cd5&nbsp;<code>T &amp; Any<\/code>&nbsp;\u5728\u4f7f\u7528\u7ad9\u70b9\u4e0a\u5c06\u6cdb\u578b\u7c7b\u578b\u5f62\u53c2\u6807\u8bb0\u4e3a\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u3002&nbsp;\u8be5\u8bed\u6cd5\u5f62\u5f0f\u6765\u81ea<a href=\"https:\/\/en.wikipedia.org\/wiki\/Intersection_type\" target=\"_blank\" rel=\"noopener\">\u76f8\u4ea4\u7c7b\u578b<\/a>\u8868\u793a\u6cd5\uff0c\u73b0\u5728\u88ab\u9650\u5236\u4e3a\u4e00\u4e2a\u7c7b\u578b\u5f62\u53c2\uff0c<code>&amp;<\/code>&nbsp;\u5de6\u4fa7\u4e3a\u53ef\u7a7a\u4e0a\u9650\uff0c\u53f3\u4fa7\u4e3a\u4e0d\u53ef\u7a7a&nbsp;<code>Any<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun &lt;t&gt; elvisLike(x: T, y: T &amp; Any): T &amp; Any = x ?: y\n\nfun main() {\n    elvisLike&lt;string&gt;(&quot;&quot;, &quot;&quot;).length \/\/ OK\n    elvisLike&lt;string&gt;(&quot;&quot;, null).length \/\/ Error: &#039;null&#039; cannot be a value of a non-null type\n\n    elvisLike&lt;string?&gt;(null, &quot;&quot;).length \/\/ OK\n    elvisLike&lt;string?&gt;(null, null).length \/\/ Error: &#039;null&#039; cannot be a value of a non-null type\n}\n<\/pre><\/string?><\/string?><\/string><\/string><\/t>\n\n\n\n<p>\u5728\u6b64\u6d4b\u8bd5\u7248\u4e2d\uff0c\u5c06\u9ed8\u8ba4\u542f\u7528\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u7c7b\u578b\u3002&nbsp;\u65e0\u9700\u5176\u4ed6\u6b65\u9aa4\u3002<\/p>\n\n\n\n<p>\u5728&nbsp;<a href=\"https:\/\/github.com\/Kotlin\/KEEP\/blob\/c72601cf35c1e95a541bb4b230edb474a6d1d1a8\/proposals\/definitely-non-nullable-types.md\" target=\"_blank\" rel=\"noopener\">KEEP<\/a>&nbsp;\u4e2d\u8be6\u7ec6\u4e86\u89e3\u7edd\u5bf9\u4e0d\u53ef\u7a7a\u7c7b\u578b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6b63\u5219\u8868\u8fbe\u5f0f\u7279\u5b9a\u4f4d\u7f6e\u5339\u914d<\/h2>\n\n\n\n<p><a href=\"https:\/\/kotlinlang.org\/docs\/whatsnew1530.html#matching-with-regex-at-a-particular-position\" target=\"_blank\" rel=\"noopener\">\u5728 1.5.30 \u4e2d\u5f15\u5165<\/a>\u7684&nbsp;<code>Regex.matchAt()<\/code>&nbsp;\u548c&nbsp;<code>Regex.matchesAt()<\/code>&nbsp;\u51fd\u6570\u73b0\u5df2\u8fbe\u5230\u7a33\u5b9a\u7248\u672c\u3002&nbsp;\u5b83\u4eec\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u5f0f\u6765\u68c0\u67e5\u6b63\u5219\u8868\u8fbe\u5f0f\u5728&nbsp;<code>String<\/code>&nbsp;\u6216&nbsp;<code>CharSequence<\/code>&nbsp;\u4e2d\u7684\u7279\u5b9a\u4f4d\u7f6e\u662f\u5426\u5177\u6709\u7cbe\u786e\u5339\u914d\u3002<\/p>\n\n\n\n<ul><li><code>matchesAt()<\/code>&nbsp;\u53ef\u4ee5\u68c0\u67e5\u5339\u914d\u5e76\u8fd4\u56de\u5e03\u5c14\u7ed3\u679c\uff1a<\/li><\/ul>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun main(){\n    val releaseText = &quot;Kotlin 1.7.0 is on its way!&quot;\n    \/\/ regular expression: one digit, dot, one digit, dot, one or more digits\n    val versionRegex = &quot;\\\\d[.]\\\\d[.]\\\\d+&quot;.toRegex()\n\n    println(versionRegex.matchesAt(releaseText, 0)) \/\/ &quot;false&quot;\n    println(versionRegex.matchesAt(releaseText, 7)) \/\/ &quot;true&quot;\n}\n<\/pre>\n\n\n\n<ul><li><code><code>matchAt()<\/code><\/code>\u00a0\u4f1a\u5728\u627e\u5230\u5339\u914d\u7684\u60c5\u51b5\u4e0b\u8fd4\u56de\u5339\u914d\uff0c\u5728\u672a\u627e\u5230\u5339\u914d\u7684\u60c5\u51b5\u4e0b\u8fd4\u56de\u00a0<code><code>null<\/code><\/code>\uff1a<\/li><\/ul>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun main(){\n    val releaseText = &quot;Kotlin 1.7.0 is on its way!&quot;\n    val versionRegex = &quot;\\\\d[.]\\\\d[.]\\\\d+&quot;.toRegex()\n\n    println(versionRegex.matchAt(releaseText, 0)) \/\/ &quot;null&quot;\n    println(versionRegex.matchAt(releaseText, 7)?.value) \/\/ &quot;1.7.0&quot;\n}\n<\/pre>\n\n\n\n<p>\u6211\u4eec\u5c06\u975e\u5e38\u611f\u8c22\u60a8\u5728<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-34021\" target=\"_blank\" rel=\"noopener\">\u6b64 YouTrack \u95ee\u9898<\/a>\u4e2d\u63d0\u4f9b\u53cd\u9988\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u65b0\u7248 Kotlin\/Native \u5185\u5b58\u7ba1\u7406\u5668<\/h2>\n\n\n\n<p>\u6211\u4eec\u5c06\u7ee7\u7eed\u6536\u96c6\u53cd\u9988\uff0c\u5e76\u6539\u8fdb\u65b0\u7248 Kotlin\/Native \u5185\u5b58\u7ba1\u7406\u5668\u3002&nbsp;\u76ee\u524d\uff0c\u60a8\u53ef\u4ee5\u5728\u9879\u76ee\u4e2d\u8bd5\u7528 Alpha \u7248\u672c\u3002&nbsp;Kotlin 1.7.0-Beta \u5e26\u6765\u4e86\u66f4\u591a\u6027\u80fd\u6539\u8fdb\uff0c\u8fd9\u4e9b\u6539\u8fdb\u5c06\u63d0\u5347\u5f00\u53d1\u8005\u4f53\u9a8c\u3002<\/p>\n\n\n\n<p>\u65b0\u7248\u5185\u5b58\u7ba1\u7406\u5668\u6d88\u9664\u4e86 JVM \u4e0e Native \u5e73\u53f0\u4e4b\u95f4\u7684\u5dee\u5f02\u3002&nbsp;\u5b83\u5728\u591a\u5e73\u53f0\u9879\u76ee\u4e2d\u63d0\u4f9b\u4e86\u4e00\u81f4\u7684\u5f00\u53d1\u8005\u4f53\u9a8c\u3002&nbsp;\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u66f4\u52a0\u8f7b\u677e\u5730\u5f00\u53d1\u540c\u65f6\u9002\u7528\u4e8e Android \u548c iOS \u5e73\u53f0\u7684\u65b0\u6b3e\u8de8\u5e73\u53f0\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u65b0\u7248 Kotlin\/Native \u5185\u5b58\u7ba1\u7406\u5668\u89e3\u9664\u4e86\u7ebf\u7a0b\u95f4\u5bf9\u8c61\u5171\u4eab\u7684\u9650\u5236\u3002&nbsp;\u5b83\u8fd8\u63d0\u4f9b\u4e86\u5b89\u5168\u4e14\u65e0\u9700\u4efb\u4f55\u7279\u6b8a\u7ba1\u7406\u6216\u6ce8\u89e3\u7684\u65e0\u6cc4\u6f0f\u5e76\u53d1\u7f16\u7a0b\u8bed\u8a00\u57fa\u5143\u3002\u65b0\u7248\u5185\u5b58\u7ba1\u7406\u5668\u5c06\u6210\u4e3a\u672a\u6765\u7248\u672c\u4e2d\u7684\u9ed8\u8ba4\u7ba1\u7406\u5668\uff0c\u56e0\u6b64\u6211\u4eec\u9f13\u52b1\u60a8\u7acb\u5373\u8bd5\u7528\u3002&nbsp;<a href=\"https:\/\/blog.jetbrains.com\/kotlin\/2021\/08\/try-the-new-kotlin-native-memory-manager-development-preview\/\">\u8be6\u7ec6\u4e86\u89e3<\/a>\u65b0\u7248\u5185\u5b58\u7ba1\u7406\u5668\u5e76\u63a2\u7d22\u6f14\u793a\u9879\u76ee\uff0c\u6216\u76f4\u63a5\u8df3\u8f6c\u5230<a href=\"https:\/\/github.com\/JetBrains\/kotlin\/blob\/master\/kotlin-native\/NEW_MM.md\" target=\"_blank\" rel=\"noopener\">\u8fc1\u79fb\u8bf4\u660e<\/a>\u4ee5\u4eb2\u81ea\u8bd5\u7528\u3002<\/p>\n\n\n\n<p>\u5728\u60a8\u7684\u9879\u76ee\u4e2d\u8bd5\u7528\u65b0\u7248\u5185\u5b58\u7ba1\u7406\u5668\u4ee5\u4e86\u89e3\u5176\u8fd0\u4f5c\u65b9\u5f0f\uff0c\u5e76\u5728\u6211\u4eec\u7684\u95ee\u9898\u8ddf\u8e2a\u5668&nbsp;<a href=\"https:\/\/youtrack.jetbrains.com\/issue\/KT-48525\" target=\"_blank\" rel=\"noopener\">YouTrack<\/a>&nbsp;\u4e2d\u5206\u4eab\u60a8\u7684\u53cd\u9988\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">JS \u548c Native \u4e2d\u7684\u547d\u540d\u6355\u83b7\u7ec4\u652f\u6301<\/h2>\n\n\n\n<p>\u4ece Kotlin 1.7.0-Beta \u8d77\uff0c\u4e0d\u4ec5\u5728 JVM\uff081.8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09\u4e0a\u652f\u6301\uff0c\u5728 JS \u548c Native \u4e0a\u4e5f\u5c06\u652f\u6301\u547d\u540d\u6355\u83b7\u7ec4\u3002<\/p>\n\n\n\n<p>\u8981\u4e3a\u6355\u83b7\u7ec4\u547d\u540d\uff0c\u8bf7\u5728\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528&nbsp;<code>(?&lt;name&gt;group)<\/code>&nbsp;\u8bed\u6cd5\u3002&nbsp;\u8981\u83b7\u53d6\u7ec4\u5339\u914d\u7684\u6587\u672c\uff0c\u8bf7\u8c03\u7528\u65b0\u5f15\u5165\u7684&nbsp;<a href=\"https:\/\/kotlinlang.org\/api\/latest\/jvm\/stdlib\/kotlin.text\/get.html\" target=\"_blank\" rel=\"noopener\"><code>MatchGroupCollection.get()<\/code><\/a>&nbsp;\u51fd\u6570\u5e76\u4f20\u9012\u7ec4\u540d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6309\u540d\u79f0\u68c0\u7d22\u5339\u914d\u7684\u7ec4\u503c<\/h3>\n\n\n\n<p>\u8bf7\u601d\u8003\u8fd9\u4e2a\u5339\u914d\u57ce\u5e02\u5750\u6807\u7684\u793a\u4f8b\u3002&nbsp;\u8981\u83b7\u53d6\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7684\u7ec4\u7684\u96c6\u5408\uff0c\u8bf7\u4f7f\u7528&nbsp;<a href=\"https:\/\/kotlinlang.org\/api\/latest\/jvm\/stdlib\/kotlin.text\/-match-result\/groups.html\" target=\"_blank\" rel=\"noopener\"><code>groups<\/code><\/a>\u3002&nbsp;\u6bd4\u8f83\u4f7f\u7528&nbsp;<code>value<\/code>&nbsp;\u6309\u7ec4\u7684\u7f16\u53f7\uff08\u7d22\u5f15\uff09\u548c\u6309\u7ec4\u7684\u540d\u79f0\u6765\u68c0\u7d22\u7ec4\u7684\u5185\u5bb9\uff1a<\/p>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun main() {\n    val regex = &quot;\\\\b(?&lt;city&gt;[A-Za-z\\\\s]+),\\\\s(?&lt;state&gt;[A-Z]{2}):\\\\s(?&lt;areaCode&gt;[0-9]{3})\\\\b&quot;.toRegex()\n    val input = &quot;Coordinates: Austin, TX: 123&quot;\n \n    val match = regex.find(input)!!\n    println(match.groups[&quot;city&quot;]?.value) \/\/ &quot;Austin&quot; \u2014 by name\n    println(match.groups[2]?.value) \/\/ &quot;TX&quot; \u2014 by number\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u547d\u540d\u5411\u540e\u5f15\u7528<\/h3>\n\n\n\n<p>\u73b0\u5728\uff0c\u60a8\u5728\u5411\u540e\u5f15\u7528\u7ec4\u65f6\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7ec4\u540d\u3002&nbsp;\u5411\u540e\u5f15\u7528\u4f1a\u5339\u914d\u6355\u83b7\u7ec4\u5148\u524d\u5339\u914d\u7684\u76f8\u540c\u6587\u672c\u3002&nbsp;\u4e3a\u6b64\uff0c\u8bf7\u5728\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528&nbsp;<code>\\k&lt;name&gt;<\/code>&nbsp;\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun backRef() {\n    val regex = &quot;(?&lt;title&gt;\\\\w+), yes \\\\k&lt;title&gt;&quot;.toRegex()\n    val match = regex.find(&quot;Do you copy? Sir, yes Sir!&quot;)!!\n    println(match.value) \/\/ &quot;Sir, yes Sir&quot;\n    println(match.groups[&quot;title&quot;]?.value) \/\/ &quot;Sir&quot;\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u66ff\u6362\u8868\u8fbe\u5f0f\u4e2d\u7684\u547d\u540d\u7ec4<\/h3>\n\n\n\n<p>\u6700\u540e\uff0c\u547d\u540d\u7ec4\u5f15\u7528\u53ef\u4ee5\u4e0e\u66ff\u6362\u8868\u8fbe\u5f0f\u4e00\u8d77\u4f7f\u7528\u3002&nbsp;\u8bf7\u601d\u8003\u7528\u4e8e\u5c06\u8f93\u5165\u4e2d\u51fa\u73b0\u7684\u6240\u6709\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\u4e3a\u66ff\u6362\u8868\u8fbe\u5f0f\u7684&nbsp;<a href=\"https:\/\/kotlinlang.org\/api\/latest\/jvm\/stdlib\/kotlin.text\/-regex\/replace.html\" target=\"_blank\" rel=\"noopener\"><code>replace()<\/code><\/a>&nbsp;\u51fd\u6570\uff0c\u4ee5\u53ca\u4ec5\u4ea4\u6362\u7b2c\u4e00\u4e2a\u5339\u914d\u9879\u7684&nbsp;<a href=\"https:\/\/kotlinlang.org\/api\/latest\/jvm\/stdlib\/kotlin.text\/-regex\/replace-first.html\" target=\"_blank\" rel=\"noopener\"><code>replaceFirst()<\/code><\/a>&nbsp;\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u51fa\u73b0\u7684\u5404\u4e2a&nbsp;<code>${name}<\/code>&nbsp;\u4f1a\u88ab\u66ff\u6362\u4e3a\u4e0e\u5177\u6709\u6307\u5b9a\u540d\u79f0\u7684\u6355\u83b7\u7ec4\u5bf9\u5e94\u7684\u5b50\u5e8f\u5217\u3002&nbsp;\u6bd4\u8f83\u6309\u540d\u79f0\u548c\u6309\u7d22\u5f15\u66ff\u6362\u7ec4\u5f15\u7528\uff1a<\/p>\n\n\n\n<pre class=\"kotlin-code\" data-highlight-only=\"true\" theme=\"idea\" indent=\"4\" style=\"visibility: hidden; padding: 36px 0;\">\nfun dateReplace() {\n    val dateRegex = Regex(&quot;(?&lt;dd&gt;\\\\d{2})-(?&lt;mm&gt;\\\\d{2})-(?&lt;yyyy&gt;\\\\d{4})&quot;)\n    val input = &quot;Date of birth: 27-04-2022&quot;\n    println(dateRegex.replace(input, &quot;\\${yyyy}-\\${mm}-\\${dd}&quot;)) \/\/ &quot;Date of birth: 2022-04-27&quot;  \u2014 by name\n    println(dateRegex.replace(input, &quot;\\$3-\\$2-\\$1&quot;)) \/\/ &quot;Date of birth: 2022-04-27&quot; \u2014 by number\n}\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"try-new-features\">\u8bd5\u7528\u65b0\u529f\u80fd\u5e76\u63d0\u4f9b\u53cd\u9988<\/h2>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u5728 1.7.0 \u9884\u89c8\u7248 Kotlin 1.7.0-Beta \u4e2d\u4f7f\u7528\u8fd9\u4e9b\u65b0\u529f\u80fd\u3002&nbsp;\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u5b83\u5b89\u88c5\u5728&nbsp;<a href=\"https:\/\/www.jetbrains.com.cn\/idea\/download\/\" target=\"_blank\" rel=\"noopener\">IntelliJ IDEA<\/a>&nbsp;\u6216&nbsp;<a href=\"https:\/\/developer.android.com\/studio\/preview\" target=\"_blank\" rel=\"noopener\">Android Studio<\/a>&nbsp;IDE \u4e2d\u3002<\/p>\n\n\n\n<div style=\"background-color: #f1f6fe; margin-bottom: 2px; padding: 5px; margin-right: 0%; text-align: left; min-height: px;\">\n<p>\u7531\u4e8e Android Studio \u63d2\u4ef6\u91cd\u547d\u540d\uff08\u6d4b\u8bd5\u7248\uff09\uff0c\u652f\u6301\u5728 1.6.20 \u53ca\u540e\u7eed\u7248\u672c\u4e2d\u5b89\u88c5\u63d2\u4ef6\u3002<\/p>\n<\/div>\n\n\n\n<p>\u8bf7\u901a\u8fc7\u4ee5\u4e0b\u4efb\u4e00\u65b9\u5f0f\u5b89\u88c5 Kotlin 1.7.0-Beta\uff1a<\/p>\n\n\n\n<ul><li>\u5982\u679c\u60a8\u4f7f\u7528<em>\u62a2\u5148\u4f53\u9a8c\u9884\u89c8<\/em>\u66f4\u65b0\u901a\u9053\uff0cIDE \u5c06\u5728 1.7.0-Beta \u53ef\u7528\u65f6\u7acb\u5373\u5efa\u8bae\u81ea\u52a8\u66f4\u65b0\u81f3\u8be5\u7248\u672c\u3002<\/li><li>\u5982\u679c\u60a8\u4f7f\u7528<em>\u7a33\u5b9a\u7248<\/em>\u66f4\u65b0\u901a\u9053\uff0c\u5219\u53ef\u4ee5\u968f\u65f6\u5728\u60a8\u7684 IDE \u4e2d\u9009\u62e9&nbsp;<strong>Tools<\/strong>&nbsp;|&nbsp;<strong>Kotlin<\/strong>&nbsp;|&nbsp;<strong>Configure Kotlin Plugin Updates<\/strong>\uff08\u5de5\u5177 | Kotlin | \u914d\u7f6e Kotlin \u63d2\u4ef6\u66f4\u65b0\uff09\u4ee5\u5207\u6362\u81f3<em>\u62a2\u5148\u4f53\u9a8c\u9884\u89c8<\/em>\u901a\u9053\u3002&nbsp;\u7136\u540e\uff0c\u60a8\u5c06\u80fd\u591f\u5b89\u88c5\u6700\u65b0\u7684\u9884\u89c8\u7248\u3002&nbsp;\u8bf7\u53c2\u9605<a href=\"https:\/\/kotlinlang.org\/docs\/install-eap-plugin.html\" target=\"_blank\" rel=\"noopener\">\u8fd9\u4e9b\u8bf4\u660e<\/a>\u4ee5\u4e86\u89e3\u8be6\u60c5\u3002<\/li><\/ul>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u968f\u65f6\u4e0b\u8f7d\u8fd9\u4e9b IDE \u7684\u6700\u65b0\u7248\u672c\u4ee5\u4fdd\u8bc1\u5bf9 Kotlin \u7684\u5168\u9762\u652f\u6301\uff1a<\/p>\n\n\n\n<ul><li><a href=\"https:\/\/www.jetbrains.com.cn\/idea\/download\/\" target=\"_blank\" rel=\"noopener\">IntelliJ IDEA<\/a>&nbsp;\u2013 \u7528\u4e8e\u4e3a\u4e0d\u540c\u5e73\u53f0\u5f00\u53d1 Kotlin \u5e94\u7528\u7a0b\u5e8f\u3002<\/li><li><a href=\"https:\/\/developer.android.com\/studio\/preview\" target=\"_blank\" rel=\"noopener\">Android Studio<\/a>&nbsp;\u2013 \u7528\u4e8e\u5f00\u53d1 Android \u548c\u8de8\u5e73\u53f0\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u3002<\/li><\/ul>\n\n\n\n<p>\u5b8c\u6210 1.7.0-Beta \u5b89\u88c5\u540e\uff0c\u4e0d\u8981\u5fd8\u8bb0\u5728\u60a8\u7684\u6784\u5efa\u811a\u672c\u4e2d<a href=\"https:\/\/kotlinlang.org\/docs\/configure-build-for-eap.html\" target=\"_blank\" rel=\"noopener\">\u5c06 Kotlin \u7248\u672c\u66f4\u6539<\/a>\u4e3a 1.7.0-Beta\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u60a8\u9047\u5230\u4efb\u4f55\u95ee\u9898\uff1a<\/h3>\n\n\n\n<ul><li>\u5411<a href=\"https:\/\/kotl.in\/issue\" target=\"_blank\" rel=\"noopener\">\u6211\u4eec\u7684\u95ee\u9898\u8ddf\u8e2a\u5668 YouTrack<\/a>&nbsp;\u62a5\u544a\u95ee\u9898\u3002<\/li><li>\u5728&nbsp;<a href=\"https:\/\/app.slack.com\/client\/T09229ZC6\/C0KLZSCHF\" target=\"_blank\" rel=\"noopener\">Kotlin Slack \u4e2d\u7684 #eap \u9891\u9053<\/a>\uff08<a href=\"https:\/\/surveys.jetbrains.com\/s3\/kotlin-slack-sign-up\" target=\"_blank\" rel=\"noopener\">\u83b7\u5f97\u9080\u8bf7<\/a>\uff09\u4e2d\u83b7\u53d6\u5e2e\u52a9\u3002<\/li><li>\u56de\u6eda\u5230\u6700\u65b0\u7684\u7a33\u5b9a\u7248\u672c\u3002&nbsp;<a href=\"https:\/\/kotlinlang.org\/docs\/install-eap-plugin.html#if-you-run-into-any-problems\" target=\"_blank\" rel=\"noopener\">\u4e86\u89e3\u65b9\u6cd5<\/a>\u3002<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u9605\u8bfb\u66f4\u591a<\/h3>\n\n\n\n<ul><li><a href=\"https:\/\/kotlinlang.org\/docs\/eap.html\" target=\"_blank\" rel=\"noopener\">\u53c2\u4e0e\u62a2\u5148\u4f53\u9a8c\u9884\u89c8<\/a><\/li><li><a href=\"https:\/\/kotlinlang.org\/docs\/roadmap.html\" target=\"_blank\" rel=\"noopener\">Kotlin \u8def\u7ebf\u56fe<\/a><\/li><\/ul>\n\n\n\n<p>\u672c\u535a\u6587\u82f1\u6587\u539f\u4f5c\u8005\uff1a<\/p>\n\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img 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