本文实例为大家分享了vue-model实现简易计算器的具体代码,供大家参考,具体内容如下
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "UTF-8" >
< meta name = "viewport" content = "width=device-width, initial-scale=1.0" >
< meta http-equiv = "X-UA-Compatible" content = "ie=edge" >
< title >Vue</ title >
< script src = "../lib/vue-2.4.0.js" ></ script >
</ head >
< body >
< div id = "app" >
<!-- 数字一 -->
< input type = "text" v-model = 'n1' placeholder = "0" >
<!-- 加减乘除 -->
< select v-model = 'opt' >
< option value = "+" > + </ option >
< option value = "-" >-</ option >
< option value = "*" >*</ option >
< option value = "/" >/</ option >
</ select >
<!-- 数字2 -->
< input type = "text" v-model = 'n2' placeholder = "0" >
<!-- 等号 -->
< input type = "button" value = '=' >
<!-- 结果 -->
< input type = "text" v-model = 'result' placeholder = "0" >
<!-- 确定按钮 -->
< input type = "button" value = '结果' @ click = 'calc' >
<!-- 归零 -->
< input type = "button" value = '归零' @ click = 'zero' >
</ div >
< script >
var vm = new Vue({
el: '#app', //表示当前new的这个实例要控制页面上的那个区域
data: { //data属性存放着 el 中要用到的数据
n1: '',
n2:'',
result:'',
opt: '+'
},
methods:{
calc(){
// switch(this.opt){
// case '+':
// this.result = parseInt(this.n1) + parseInt(this.n2)
// break;
// case '-':
// this.result = parseInt(this.n1) - parseInt(this.n2)
// break;
// case '*':
// this.result = parseInt(this.n1) * parseInt(this.n2)
// break;
// case '/':
// this.result = parseInt(this.n1) / parseInt(this.n2)
// break;
// }
// 简写
var codeStr = 'parseInt(this.n1) '+ this.opt +' parseInt(this.n2)'
this.result = eval(codeStr)
},
zero(){
this.n1 = '',
this.n2 = '',
this.result = '',
this.opt = '+'
}
}
})
</ script >
</ body >
</ html >
|
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/qq_44777678/article/details/95006618