<script type="text/javascript"> /* substr(start, number); start - 起始位置,下标从0开始 number - 截取几个字符 */ function substrDemo(){ var str = "123 abc.."; var s = str.substr(2, 6); return s; //3 abc. } alert(substrDemo()); /* substring(start, end); start - 起始位置,下标从0开始 end - 结束位置,下标-1 */ function substringDemo(){ var str = "123 abc.."; var s = str.substring(2, 6); //3 ab return s; } alert(substringDemo()); </script>
JavaScript - 字符串截取函数substr()与substring()的区别
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转载自cc-index.iteye.com/blog/1667093
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