<script>
var str = '卧槽,哈哈哈,卧槽,哈哈哈,卧槽,哈哈哈,卧槽,哈哈哈';
var b = str.split('卧槽,');
str = b.join('');
document.write(str);
</script>
<script>
var str = '卧槽,哈哈哈,卧槽,哈哈哈,卧槽,哈哈哈,卧槽,哈哈哈';
var b = str.split('卧槽,');
str = b.join('');
document.write(str);
</script>