<script type="text/javascript">
var str="Microsoft Welcome to Microsoft Microsoft Microsoft Microsoft ! "'
var reg = new RegExp("Microsoft","g"); //创建对象方法来创建REG **PS:全局搜索哦!
alert(reg); //check
document.write(str.replace(reg.source, "W3School")); //对象写入Regexp
document.write("<br>");
document.write(str.replace(/Microsoft/g, "W3School")); //直接写入Regexp
</script>显示:W3School Welcome to Microsoft Microsoft Microsoft Microsoft !
W3School Welcome to W3School W3School W3School W3School ! 请问 怎么不一样了? 有什么办法用第一种方法得到第二种方法的答案么?
var str="Microsoft Welcome to Microsoft Microsoft Microsoft Microsoft ! "'
var reg = new RegExp("Microsoft","g"); //创建对象方法来创建REG **PS:全局搜索哦!
alert(reg); //check
document.write(str.replace(reg.source, "W3School")); //对象写入Regexp
document.write("<br>");
document.write(str.replace(/Microsoft/g, "W3School")); //直接写入Regexp
</script>显示:W3School Welcome to Microsoft Microsoft Microsoft Microsoft !
W3School Welcome to W3School W3School W3School W3School ! 请问 怎么不一样了? 有什么办法用第一种方法得到第二种方法的答案么?
document.write(str.replace(reg, "W3School"));