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微信小程序简易计算器制作(微信小程序实现简单计算器功能)

更多 时间:2021-10-03 01:10:05 类别:编程学习 浏览量:906

微信小程序简易计算器制作

微信小程序实现简单计算器功能

微信小程序:简单计算器,供大家参考,具体内容如下

对于才接触小程序不久的人来说,想要直接上手一个实用性强的项目难度很大,想要快速熟悉小程序的使用,我们可以先尝试着做一个简单的计算器。

运行截图

微信小程序简易计算器制作(微信小程序实现简单计算器功能)

计算器对于界面美观的要求并不高,只是一些view以及button控件的组合,所以并不需要在界面上费很多功夫。重要的是逻辑层,之所以选择计算器作为上手的第一个项目,因为计算器的逻辑可简可繁,完全可以适应新手对小程序的掌握程度。

主要代码

js:

  • Page({
      data: {
       result:"0",
       id1:"clear",
       id2:"back",
       id3:"time",
       id4:"li",
       id5:"mul",
       id6:"sub",
       id7:"add",
       id8:"dot",
       id9:"eql",
       id10:"num_0",
       id11:"num_1",
       id12:"num_2",
       id13:"num_3",
       id14:"num_4",
       id15:"num_5",
       id16:"num_6",
       id17:"num_7",
       id18:"num_8",
       id19:"num_9",
       buttonDot:false,
       is_time:false
      },
      clickButton: function (e) {
       console.log(e);
       var buttonVal = e.target.id;
       var res = this.data.result;
       if(this.data.is_time==true){
        res=0
      }
       var newbuttonDot=this.data.buttonDot;
       var sign;
       if (buttonVal >= "num_0" && buttonVal <= "num_9") {
        var num=buttonVal.split('_')[1];
        if (res == "0" || ((res.length-0) -(length-1)) == "=") {
         res = num;
        }
        else {
         res = res + num;
        }
       }
       else{
        if(buttonVal=="dot")
        {
         if(!newbuttonDot)
         {
          res = res + '.';
         }
        }
        else if(buttonVal=="clear")
        {
         res='0';
        }
        else if(buttonVal=="back")
        {
         var length=res.length;
         if(length>1)
         {
          res=res.substr(0,length-1);
         }
         else{
          res='0'; 
         }
        }
        else if (buttonVal == "li" || buttonVal == "mul" || buttonVal == "sub" || buttonVal == "add")
        {
          if(res.length){}
          else{
            res=JSON.stri.jpg" alt="微信小程序简易计算器制作(微信小程序实现简单计算器功能)" border="0" />
    
  • wxml

  • <!--index.wxml-->
    <view class="project_name">简单计算器</view>
    <view class="screen_content">
      <view class="screen">{{result}}</view>
    </view>
    <view class="content"> 
     <view class="buttonGroup">
      <button id="{{id1}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">C</button>
      <button id="{{id2}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">BS</button>
      <button id="{{id3}}" bindtap="time" class="buttonitem color" hover-class="shadow">
      <icon type="waiting" color="#66CC33"></icon>
      </button>
      <button id="{{id4}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">÷</button>
     </view> 
     <view class="buttonGroup"> 
      <button id="{{id17}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">7</button>
      <button id="{{id18}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">8</button>
      <button id="{{id19}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">9</button>
      <button id="{{id5}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">×</button>
     </view>
     <view class="buttonGroup">
      <button id="{{id14}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">4</button>
      <button id="{{id15}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">5</button>
      <button id="{{id16}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">6</button>
      <button id="{{id6}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">-</button>
     </view>
     <view class="buttonGroup">
      <button id="{{id11}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">1</button>
      <button id="{{id12}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">2</button>
      <button id="{{id13}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">3</button>
      <button id="{{id7}}" bindtap="clickButton" class="buttonitem color" hover-class="shadow">+</button>
     </view>
     <view class="buttonGroup">
      <button id="{{id10}}" bindtap="clickButton" class="buttonitem1 color" hover-class="shadow">0</button>
      <button id="{{id8}}" bindtap="clickButton" class="buttonitem1 color" hover-class="shadow">.</button>
      <button id="{{id9}}" bindtap="equal" class="equal" hover-class="shadow">=</button>
     </view>
    </view>
    
  • wxss:

  • /**index.wxss**/
    page{
      background: #f5f5f5;
     }
     .project_name{
       position:absolute;
       top:25px;
       width:100%;
       text-align: center;
       font-size: 30px;
     }
     .screen_content{
      position: fixed;
      color: #1b1717;
      background: #fff;
      font-size: 40px;
      bottom: 390px;
      text-align: right;
      height:100px;
      width: 100%;
      word-wrap: break-word;
      border-top:1px solid #a8a8a8;
      border-bottom:1px solid #a8a8a8;
     }
     .screen{
      position: absolute;
      font-size: 40px;
      text-align: right;
      bottom:0px;
      width: 96%;
      left:2%;
      word-wrap: break-word;
     }
     .content{
      position: fixed;
      bottom: 0;
     }
     .buttonGroup{
      display: flex;
      flex-direction: row;
     }
     .buttonitem{
      text-align: center;
      line-height: 120rpx;
      width: 25%;
      border-radius: 0;
     }
     .buttonitem1{
      width: 192rpx;
      text-align: center;
      line-height: 120rpx;
      border-radius: 0;
     }
     icon{
      position: absolute;
      top: 20%;
      left: 67rpx;
     }
     .color{
      background: #fff;
     }
     .equal{
       width: 380rpx;
       text-align: center;
       line-height: 120rpx;
       border-radius: 0;
       background: #fff;
     }
     .shadow{
      background: #e9ebe9;
     }
    
  • 后记

    我这里只是对加减程进行了粗略的处理,但是这样的一个计算器也已经具备了初步的功能,随着我们掌握程度的加深,我们还可以添加平方,开方等更复杂的功能,从而熟练掌握小程序的开发。

    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开心学习网。

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