<script type="text/javascript">
var count=0;
var str="Welcome to Microsoft! "
str=str + "We are proud to announce that Microsoft has "
str=str + "one of the largest Web Developers sites in the world."
var reg=/Microsoft/g;while (reg.exec(str)!=null)
{
count++;
}alert("总计匹配的个数有:"+count);//document.write(str.replace(/Microsoft/g, "微軟")) </script>
var count=0;
var str="Welcome to Microsoft! "
str=str + "We are proud to announce that Microsoft has "
str=str + "one of the largest Web Developers sites in the world."
var reg=/Microsoft/g;while (reg.exec(str)!=null)
{
count++;
}alert("总计匹配的个数有:"+count);//document.write(str.replace(/Microsoft/g, "微軟")) </script>
str=str + "We are proud to announce that Microsoft has "
str=str + "one of the largest Web Developers sites in the world." var s="Microsoft";
alert(eval("str.match(/"+s+"/ig).length"))//个数document.write(str.replace(/Microsoft/g, "微軟")) </script>
str=str + "We are proud to announce that Microsoft has "
str=str + "one of the largest Web Developers sites in the world."
var number=0;
while(str.indexOf("Microsoft")!=-1){
alert(str.indexOf("Microsoft"));
str=str.replace("Microsoft", "微軟");
number++;
alert(number);
}