下面的代码在jsfiddle.net上可以运行,在chrome和Firefox上没反应?
IDE是WebStorme
代码一直出错,放到jsfiddle.net上却可以,弄到有点怀疑人生了...
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script>
function show() {
var value2=document.getElementById("hello_2");
value2.style.visibility="visible";
}
var value1=document.getElementById("hello_1");
value1.addEventListener("click",show,false);
</script>
<style>
</style>
</head>
<body>
<button id="hello_1">hello</button>
<div id="hello_2" style="color: yellow;visibility: hidden">hello</div>
</body>
</html>
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