{"id":8277,"date":"2023-11-28T20:22:11","date_gmt":"2023-11-28T12:22:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8277"},"modified":"2023-12-02T22:20:31","modified_gmt":"2023-12-02T14:20:31","slug":"vue-zhongjs-zhong-desubstr-hesubstring-han-shu-y","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/vue-zhongjs-zhong-desubstr-hesubstring-han-shu-y\/","title":{"rendered":"Vue \u4e2d JS \u4e2d\u7684 substr() \u548c substring() \u51fd\u6570\u6709\u4ec0\u4e48\u533a\u522b\uff1f"},"content":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0c<code>substr()<\/code> \u548c <code>substring()<\/code> \u90fd\u662f\u7528\u4e8e\u63d0\u53d6\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u90e8\u5206\u7684\u65b9\u6cd5\uff0c\u4f46\u5b83\u4eec\u6709\u4e00\u4e9b\u533a\u522b\uff1a<\/p>\n<h3><a id=\"substr-startindex-length\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><code>substr(startIndex, length)<\/code><\/h3>\n<ul>\n<li><strong>\u53c2\u6570\uff1a<\/strong> \u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8d77\u59cb\u7d22\u5f15\uff08\u53ef\u4ee5\u662f\u8d1f\u6570\uff0c\u8868\u793a\u4ece\u5b57\u7b26\u4e32\u672b\u5c3e\u5f00\u59cb\u8ba1\u6570\uff09\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8981\u63d0\u53d6\u7684\u5b57\u7b26\u6570\u3002<\/li>\n<li><strong>\u529f\u80fd\uff1a<\/strong> \u4ece\u6307\u5b9a\u7684\u8d77\u59cb\u4f4d\u7f6e\u5f00\u59cb\u622a\u53d6\u6307\u5b9a\u957f\u5ea6\u7684\u5b57\u7b26\u3002<\/li>\n<li><strong>\u8d1f\u6570\u5904\u7406\uff1a<\/strong> \u82e5\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e3a\u8d1f\u6570\uff0c\u5219\u4ece\u5b57\u7b26\u4e32\u672b\u5c3e\u5f00\u59cb\u8ba1\u6570\u3002\u82e5\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a\u8d1f\u6570\u6216\u8d85\u51fa\u5b57\u7b26\u4e32\u957f\u5ea6\uff0c\u5219\u4f1a\u88ab\u8f6c\u6362\u4e3a 0\u3002<\/li>\n<\/ul>\n<h3><a id=\"substring-startindex-endindex\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><code>substring(startIndex, endIndex)<\/code><\/h3>\n<ul>\n<li><strong>\u53c2\u6570\uff1a<\/strong> \u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u5206\u522b\u662f\u8d77\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u542b\u7ed3\u675f\u7d22\u5f15\u4f4d\u7f6e\u7684\u5b57\u7b26\uff09\u3002<\/li>\n<li><strong>\u529f\u80fd\uff1a<\/strong> \u4ece\u8d77\u59cb\u7d22\u5f15\u5904\u5f00\u59cb\u5230\u7ed3\u675f\u7d22\u5f15\u4e4b\u524d\uff08\u4e0d\u5305\u542b\u7ed3\u675f\u7d22\u5f15\u4f4d\u7f6e\uff09\u7684\u5b57\u7b26\u3002<\/li>\n<li><strong>\u8d1f\u6570\u5904\u7406\uff1a<\/strong> \u82e5\u53c2\u6570\u4e3a\u8d1f\u6570\u6216\u8005\u5927\u4e8e\u5b57\u7b26\u4e32\u957f\u5ea6\uff0c\u4f1a\u88ab\u89c6\u4e3a 0 \u6216\u8005\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n<h3><a id=\"%E5%8C%BA%E5%88%AB%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u533a\u522b\uff1a<\/h3>\n<ul>\n<li><strong>\u533a\u95f4\u53c2\u6570\u4e0d\u540c\uff1a<\/strong> <code>substr()<\/code> \u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8981\u63d0\u53d6\u7684\u5b57\u7b26\u6570\uff0c\u800c <code>substring()<\/code> \u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u7ed3\u675f\u7d22\u5f15\u4f4d\u7f6e\u3002<\/li>\n<li><strong>\u5bf9\u8d1f\u6570\u53c2\u6570\u5904\u7406\u4e0d\u540c\uff1a<\/strong> <code>substr()<\/code> \u53ef\u4ee5\u63a5\u53d7\u8d1f\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u800c <code>substring()<\/code> \u5219\u4f1a\u5c06\u8d1f\u6570\u53c2\u6570\u89c6\u4e3a 0\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-javascript\">const str = &quot;JavaScript&quot;;\n\nconst substrResult = str.substr(4, 6); \/\/ \u4ece\u7d22\u5f154\u5f00\u59cb\u63d0\u53d66\u4e2a\u5b57\u7b26\uff08Script\uff09\nconst substringResult = str.substring(4, 6); \/\/ \u4ece\u7d22\u5f154\u5f00\u59cb\u5230\u7d22\u5f156\u4e4b\u524d\u7684\u5b57\u7b26\uff08Sc\uff09\n<\/code><\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u5728\u67d0\u4e9b\u65b9\u9762\u529f\u80fd\u91cd\u53e0\uff0c\u4f46\u5728\u5904\u7406\u8d1f\u6570\u53c2\u6570\u548c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u5b9a\u4e49\u4e0a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0csubstr() \u548c substring() \u90fd\u662f\u7528\u4e8e\u63d0\u53d6\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u90e8\u5206\u7684\u65b9\u6cd5 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-8277","post","type-post","status-publish","format-standard","hentry","category-vue"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8277"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8277\/revisions"}],"predecessor-version":[{"id":14080,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8277\/revisions\/14080"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8277"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}