微信小程序怎么实现计算器

本篇内容介绍了"微信小程序怎么实现计算器"的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

效果如下：

index.wxml

    {{num}}    {{op}}            c        DEL        %        ÷                7        8        9        x                4        5        6        -                1        2        3        +                0        .        =    

index.css

page {  display: flex;  flex-direction: column;  height: 100%;}.content {  flex: 1;  background-color: #f3f6fe;  position: relative;}.content .num {  position: absolute;  font-size: 27pt;  bottom: 5vh;  right: 3vw;}.content .operotor {  font-size: 15pt;  position: absolute;  bottom: 1vh;  right: 3vw;}.entry {  flex: 1;  font-size: 17pt;  border-top: 1rpx solid #ccc;}.entry .item {  flex: 1;  padding: 30rpx 0;  text-align: center;  flex-basis: 25%;  border-left: 1rpx solid #ccc;  border-bottom: 1rpx solid #ccc;}.entry > view {  display: flex;}.entry > view .tow {  flex: 2;}.entry > view .one {  flex: 1;}

index.js

Page({    data: {        num: "",  // 存储数字        op: ""    //存储运算符    },    result: null,      isClear: false,    numBtn: function(e) {        var num = e.target.dataset.val            //console.log(num) 得到data-val的值        console.log(this.isClear)        if (this.data.num === "0" || this.isClear) {            this.setData({ num: num })            this.isClear = false        } else {            this.setData({ num: this.data.num + num })        }    },    opBtn: function(e) {        var op = this.data.op        var num = Number(this.data.num)        this.setData({ op: e.target.dataset.val })        if (this.isClear) {            return        }        this.isClear = true        if (this.result === null) {            this.result = num            return        }        if (op === "+") {            this.result = this.result + num        } else if (op === "-") {            this.result = this.result - num        } else if (op === "*") {            this.result = this.result * num        } else if (op === "/") {            this.result = this.result / num        } else if (op === "%") {            this.result = this.result % num        }        this.setData({ num: this.result })    },    dotBtn: function() {        if (this.isClear) {            this.setData({ num: "0." })            this.isClear = false            return        }        if (this.data.num.indexOf(".") >= 0) {            return        }        this.setData({ num: this.data.num + "." })    },    delBtn: function() {        var num = this.data.num.substr(0, this.data.num.length - 1)        this.setData({ num: num === "" ? "0" : num })    },    resetBtn: function() {        this.result = null        this.isClear = false        this.setData({ num: "0", op: "" })    }})

"微信小程序怎么实现计算器"的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注网站，小编将为大家输出更多高质量的实用文章！