老师检查一下
来源：3-6 编程练习
慕九州8176055
2019-12-02 23:01:08
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>变量、作用域</title>
</head>
<body>
<script type="text/javascript">
var a = 3, b = 4;
/*此处写代码*/
a=a+b;
b=a-b;
a=a-b;
console.log(a);
console.log(b);
</script>
</body>
</html>
写回答
1回答
-
好帮手慕夭夭
2019-12-03
同学你好，代码实现正确，继续加油，祝学习愉快！
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