正则表达式把Paul换成Ringo
<script>
var str='Paul,Paula,paul,Ppaul,Paul';//字符串
var result=str.replace(/Paul/g,"ringo");//将字符串中的Paul单词替换成ringo
document.write(result);
</script>
运行结果为：ringo,Paula,paul,Ppaul,ringo
正则表达式把Paul换成Ringo
<script>
var str='Paul,Paula,paul,Ppaul,Paul';//字符串
var result=str.replace(/Paul/g,"ringo");//将字符串中的Paul单词替换成ringo
document.write(result);
</script>
运行结果为：ringo,Paula,paul,Ppaul,ringo