开发工具与关键技术:DW MVC
作者:陈芝番
撰写时间:2019.4.13
数组:
Map 映射 一个对一个
Reduce 汇总 一堆出来一个
Filter 过滤器
Foreach 循环
1.加法:+
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
let a=590;
let b=5;
let c=5;
console.log(a+b+c);
输出值:
</script>
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
var a= 590;
var b= 5;
var c= 5;
console.log(a+b+c)
</script>
输出值:
2.除法:/
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
let a =81;
let b =9;
let c =3;
console.log(a/b/c)
</script>
输出值:
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
var a =81;
var b =9;
var c =3;
console.log(a/b/c)
</script>
输出值:
3.乘法:*
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
let a =3;
let b =3;
let c =3;
console.log(a*b*c)
输出值:
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
var a =3;
var b =3;
var c =3;
console.log(a*b*c)
</script>
输出值:
4.混合:+ - * /
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
let a =5;
let b =5;
let c =5;
console.log(a*b/c)
</script>
输出值:
<script src="browser.js" charset="utf-8"></script>
<script type="text/babel">
var a =5;
var b =5;
var c =5;
console.log(a*b/c)
</script>
输出值: