<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>计算器</title>
<script type="text/javascript" src="js/jquery-1.11.0.js" ></script>
</head>
<body>
<button class="add">+</button>
<button class="reduce">-</button>
<p></p>
<script>
var num = 0
var b = localStorage.getItem("c") || num
$("p").html(b)
$(".add").click(function(){
b++
localStorage.setItem("c",b)
$("p").html(b)
})
$(".reduce").click(function(){
b--
if(b<0){
b = 0
localStorage.setItem("c",b)
}
localStorage.setItem("c",b)
$("p").html(b)
})
</script>
</body>
</html>
HTML5--数据存储之计算器【加减】
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转载自blog.csdn.net/AsaZyf/article/details/82799464
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