JavaScript中的indexOf
1、JavaScript中利用indexOf拼接字符串
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>JavaScript中的indexOf</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <script type="text/javascript"> function strIndexOf() { var str = "水果,总数,总数|水果,苹果,总数|水果,苹果,红富士|树木,总数,总数|树木,松树,总数|树木,松树,红松"; var str1 = ""; var str2 = ""; var str3 = ""; var result = new Array(); result = str.split("|") for(var i=0;i<result.length;i++) { if(result[i].indexOf(",总数,总数") > 0) { str1 += result[i] + "|"; } else { if(result[i].indexOf(",总数") > 0) { str2 += result[i] + "|"; } else { str3 += result[i] + "|"; } } } str1 = str1.substring(0, str1.length - 1); str2 = str2.substring(0, str2.length - 1); str3 = str3.substring(0, str3.length - 1); alert("str1:" + str1 + "\n" + "str2:" + str2 + "\n" + "str3:" + str3); } </script> </head> <body> <input type="button" value="查询" onclick="strIndexOf()"/> </body> </html>
2、运行结果