tryjs_string_replace_regexp 在线代码实例

 <p>替换 "microsoft" 为 "W3cSchool" :</p>
<button onclick="myFunction()">点我</button>
<p id="demo">请访问 Microsoft!</p>
<script>
function myFunction() {
    var str = document.getElementById("demo").innerHTML; 
    var txt = str.replace(/microsoft/i,"W3cSchool");
    document.getElementById("demo").innerHTML = txt;
}
</script>