html5 外链式实现加减乘除
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2022-06-06 17:25:25
js代码： ......
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>加减乘除</title>
<script src="a.js"></script>//引用js
</head>
<body>
<p>a=3,b=2;</p>
<input type="button" onclick="alert(sum(3,2))" value="加" />
<input type="button" onclick="alert(jian(3,2))" value="减" />
<input type="button" onclick="alert(cheng(3,2))" value="乘" />
<input type="button" onclick="alert(chu(3,2))" value="除" />
</body>
</html>
js代码：
function sum(a,b){
var c;
c=a+b;
return c;
}
function jian(a,b){
var c;
c=a-b;
return c;
}
function cheng(a,b){
var c;
c=a*b;
return c;
}
function chu(a,b){
var c;
c=a/b;
return c;
}