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js loading, reading content and showing and hiding div examples_javascript skills

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2016-05-16 17:00:111234browse
复制代码 代码如下:


<script> <br>function check(){ <br><br>var num = document.getElementById("choose").value; <br>alert(num); <br>if(num=="4"){ <br>document.getElementById("show").style.display="block"; <br>}else{ <br>document.getElementById("show").style.display="none"; <br>} <br>} <br></script>









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