{"id":5458,"date":"2023-01-05T12:42:50","date_gmt":"2023-01-05T04:42:50","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5458"},"modified":"2023-01-05T12:42:50","modified_gmt":"2023-01-05T04:42:50","slug":"%e5%ad%b8%e7%bf%92typescript%e4%b8%ad%e7%9a%84%e5%bd%92%e5%b9%b6%e6%8e%92%e5%ba%8fmergesort","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92typescript%e4%b8%ad%e7%9a%84%e5%bd%92%e5%b9%b6%e6%8e%92%e5%ba%8fmergesort\/","title":{"rendered":"\u5b78\u7fd2TypeScript\u4e2d\u7684\u5f52\u5e76\u6392\u5e8f(mergeSort)"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u9663\u5217, \u5f52\u5e76\u6392\u5e8f, mergeSort\"><\/p>\n<h1>TypeScript \u9663\u5217\u7684\u5f52\u5e76\u6392\u5e8f(mergeSort)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u64c1\u6709\u66f4\u591a\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u958b\u767c\u51fa\u66f4\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5176\u4e2d\u4e00\u500b\u7279\u6027\u5c31\u662f\u652f\u63f4\u5f52\u5e76\u6392\u5e8f\uff0c\u4e5f\u5c31\u662f mergeSort\uff0c\u5b83\u662f\u4e00\u7a2e\u5206\u6cbb\u6f14\u7b97\u6cd5\uff0c\u53ef\u4ee5\u5c07\u4e00\u500b\u9663\u5217\u5206\u6210\u5169\u500b\u5b50\u9663\u5217\uff0c\u4e26\u5c0d\u5169\u500b\u5b50\u9663\u5217\u5206\u5225\u6392\u5e8f\uff0c\u6700\u5f8c\u518d\u5c07\u5169\u500b\u5b50\u9663\u5217\u5408\u4f75\u6210\u4e00\u500b\u6709\u5e8f\u7684\u9663\u5217\u3002<\/p>\n<h2>\u5be6\u4f5c mergeSort<\/h2>\n<p>\u8981\u5be6\u4f5c mergeSort\uff0c\u9996\u5148\u8981\u5148\u5b9a\u7fa9\u4e00\u500b\u51fd\u5f0f\uff0c\u8a72\u51fd\u5f0f\u63a5\u6536\u4e00\u500b\u9663\u5217\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u5c07\u8a72\u9663\u5217\u5206\u6210\u5169\u500b\u5b50\u9663\u5217\uff0c\u7136\u5f8c\u5c0d\u5169\u500b\u5b50\u9663\u5217\u5206\u5225\u6392\u5e8f\uff0c\u6700\u5f8c\u518d\u5c07\u5169\u500b\u5b50\u9663\u5217\u5408\u4f75\u6210\u4e00\u500b\u6709\u5e8f\u7684\u9663\u5217\u3002<\/p>\n<pre class=\"brush: typescript\">\nfunction mergeSort(arr: number[]) {\n  \/\/ \u5982\u679c\u9663\u5217\u9577\u5ea6\u5c0f\u65bc\u7b49\u65bc 1\uff0c\u5247\u76f4\u63a5\u56de\u50b3\n  if (arr.length <= 1) {\n    return arr;\n  }\n\n  \/\/ \u5c07\u9663\u5217\u5206\u6210\u5169\u500b\u5b50\u9663\u5217\n  const middle = Math.floor(arr.length \/ 2);\n  const left = arr.slice(0, middle);\n  const right = arr.slice(middle);\n\n  \/\/ \u5c0d\u5169\u500b\u5b50\u9663\u5217\u5206\u5225\u6392\u5e8f\n  const sortedLeft = mergeSort(left);\n  const sortedRight = mergeSort(right);\n\n  \/\/ \u5c07\u5169\u500b\u5b50\u9663\u5217\u5408\u4f75\u6210\u4e00\u500b\u6709\u5e8f\u7684\u9663\u5217\n  return merge(sortedLeft, sortedRight);\n}\n<\/pre>\n<p>\u63a5\u8457\uff0c\u6211\u5011\u9084\u9700\u8981\u5b9a\u7fa9\u4e00\u500b\u51fd\u5f0f\uff0c\u8a72\u51fd\u5f0f\u63a5\u6536\u5169\u500b\u6709\u5e8f\u7684\u9663\u5217\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u5c07\u5169\u500b\u9663\u5217\u5408\u4f75\u6210\u4e00\u500b\u6709\u5e8f\u7684\u9663\u5217\u3002<\/p>\n<pre class=\"brush: typescript\">\nfunction merge(left: number[], right: number[]) {\n  let result: number[] = [];\n  let leftIndex = 0;\n  let rightIndex = 0;\n\n  \/\/ \u5c07\u5169\u500b\u9663\u5217\u4e2d\u7684\u5143\u7d20\u9010\u4e00\u6bd4\u8f03\uff0c\u5c07\u8f03\u5c0f\u7684\u5143\u7d20\u653e\u5165 result \u9663\u5217\u4e2d\n  while (leftIndex < left.length &#038;&#038; rightIndex < right.length) {\n    if (left[leftIndex] < right[rightIndex]) {\n      result.push(left[leftIndex]);\n      leftIndex++;\n    } else {\n      result.push(right[rightIndex]);\n      rightIndex++;\n    }\n  }\n\n  \/\/ \u5c07\u5269\u9918\u7684\u5143\u7d20\u653e\u5165 result \u9663\u5217\u4e2d\n  return result.concat(left.slice(leftIndex)).concat(right.slice(rightIndex));\n}\n<\/pre>\n<h2>\u5be6\u969b\u61c9\u7528<\/h2>\n<p><!--more--><\/p>\n<p>\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 mergeSort \u4f86\u5c0d\u9663\u5217\u9032\u884c\u6392\u5e8f\uff0c\u4f8b\u5982\uff0c\u6211\u5011\u53ef\u4ee5\u5c0d\u4e00\u500b\u6578\u5b57\u9663\u5217\u9032\u884c\u6392\u5e8f\uff1a<\/p>\n<pre class=\"brush: typescript\">\nconst arr = [5, 3, 8, 2, 1, 4];\nconst sortedArr = mergeSort(arr);\nconsole.log(sortedArr); \/\/ [1, 2, 3, 4, 5, 8]\n<\/pre>\n<p>\u6211\u5011\u4e5f\u53ef\u4ee5\u5c0d\u4e00\u500b\u5b57\u4e32\u9663\u5217\u9032\u884c\u6392\u5e8f\uff1a<\/p>\n<pre class=\"brush: typescript\">\nconst arr = [\"apple\", \"banana\", \"orange\", \"pear\"];\nconst sortedArr = mergeSort(arr);\nconsole.log(sortedArr); \/\/ [\"apple\", \"banana\", \"orange\", \"pear\"]\n<\/pre>\n<h2>\u7e3d\u7d50<\/h2>\n<p>TypeScript \u652f\u63f4\u5f52\u5e76\u6392\u5e8f\uff0c\u4e5f\u5c31\u662f mergeSort\uff0c\u5b83\u662f\u4e00\u7a2e\u5206\u6cbb\u6f14\u7b97\u6cd5\uff0c\u53ef\u4ee5\u5c07\u4e00\u500b\u9663\u5217\u5206\u6210\u5169\u500b\u5b50\u9663\u5217\uff0c\u4e26\u5c0d\u5169\u500b\u5b50\u9663\u5217\u5206\u5225\u6392\u5e8f\uff0c\u6700\u5f8c\u518d\u5c07\u5169\u500b\u5b50\u9663\u5217\u5408\u4f75\u6210\u4e00\u500b\u6709\u5e8f\u7684\u9663\u5217\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 mergeSort \u4f86\u5c0d\u9663\u5217\u9032\u884c\u6392\u5e8f\uff0c\u7121\u8ad6\u662f\u6578\u5b57\u9663\u5217\u9084\u662f\u5b57\u4e32\u9663\u5217\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528 mergeSort \u4f86\u5c0d\u9663\u5217\u9032\u884c\u6392\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2TypeScript\u4e2d\u7684\u5f52\u5e76\u6392\u5e8f(mergeSort)\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5c07\u9663\u5217\u4e2d\u7684\u5143\u7d20\u6392\u5e8f\uff0c\u63d0\u9ad8\u7a0b\u5f0f\u7684\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5f52\u5e76\u6392\u5e8f\u7684\u539f\u7406\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528TypeScript\u4f86\u5be6\u73fe\u5f52\u5e76\u6392\u5e8f\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[187],"tags":[186],"class_list":["post-5458","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1q2","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5458"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5458\/revisions"}],"predecessor-version":[{"id":5459,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5458\/revisions\/5459"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}