使用循环和分割来替换和删除元素，经测试很简单，但很实用，特别适合新手朋友
<!DOCTYPE> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>使用循环和分割来替换和删除元素</title> <script> var arr = new Array("ab","aa","bc","ab","ss","ab","ss","dd","ab","aa","aa","aa"); while(arr.indexOf("ab") != -1){ console.log("1"+arr); arr.splice(arr.indexOf("ab"),1,"**"); } console.log(arr); while(arr.indexOf("**") != -1){ console.log(arr); arr.splice(arr.indexOf("**"),1); } console.log(arr); </script> </head> <body> </body> </html>ie8还不支持indexOf和splice