Django+Bootstrap实现计算器的示例代码

准备工作

创建一个应用：

添加应用到配置

Django+Bootstrap实现计算器的示例代码

创建一个html

Django+Bootstrap实现计算器的示例代码

编写视图函数

from django.shortcuts import render


# Create your views here.

def home(request):
  return render(request, 'index.html')

Django+Bootstrap实现计算器的示例代码

配置路由

from django.contrib import admin
from django.urls import path,include

from app.views import home

urlpatterns = [
  path('admin/', admin.site.urls),
  path('',home,name='hoome'),
]

Django+Bootstrap实现计算器的示例代码

导入Bootstrap前端框架

下载地址

将css、fonts、js复制到static文件夹下没有则创建该文件夹

Django+Bootstrap实现计算器的示例代码

编写前端内容

{% load static %}
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>计算器</title>
  <link rel="stylesheet" href="{% static 'css/bootstrap.min.css' %}" rel="external nofollow" >
  <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
  <script src="{% static 'js/bootstrap.min.js' %}"></script>

  <style>
      body{
          background-position: center 0;
          background-repeat: no-repeat;
          background-attachment: fixed;
          background-size: cover;
          -webkit-background-size: cover;
          -o-background-size: cover;
          -moz-background-size: cover;
          -ms-background-size:cover;
      }
      .input_show{
          margin-top: 35px;
          max-width: 280px;
          height: 35px;
      }
      .btn_num{
          margin:1px 1px 1px 1px;
          width: 60px;
      }
      .btn_clear{
          margin-left: 40px;
          margin-right: 20px;
      }
      .extenContent{
          height: 300px;
      }
  </style>
</head>
<body>
<div class="container-fluid">
  <div class="row">
      <div class="col-xs-1 col-sm-4"> </div>
      <div id="computer" class="col-xs-1 col-sm-6">
          <input type="text" id="txt_code" name="txt_code" value="" class="form-control input_show" placeholder="" disabled>
          <input type="text" id="txt_result" name="txt_result" value="" class="form-control input_show" placeholder="结果" disabled>
          <br>
          <div>
              <button type="button" class="btn btn-default btn_num" onclick="fun_7()">7</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_8()">8</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_9()">9</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_div()">/</button>
              <br>
              <button type="button" class="btn btn-default btn_num" onclick="fun_4()">4</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_5()">5</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_6()">6</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_mul()">*</button>
              <br>
              <button type="button" class="btn btn-default btn_num" onclick="fun_1()">1</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_2()">2</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_3()">3</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_sub()">-</button>
              <br>
              <button type="button" class="btn btn-default btn_num" onclick="fun_0()">0</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_00()">00</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_dot()">.</button>
              <button type="button" class="btn btn-default btn_num" onclick="fun_add()">+</button>
          </div>
      <div>
      <br>
      <button type="button" class="btn btn-success btn-lg btn_clear" id="lgbut_clear" onclick="fun_clear()">
  清空
</button>
<button type="button" class="btn btn-primary btn-lg" id="lgbut_compute" >
  计算
</button>
  </div>
      </div>
          <div class="col-xs-1 col-sm-2"></div>
</div>
  </div>
<div class="extenContent"></div>
<script>
  var x=document.getElementById("txt_code");
  var y=document.getElementById("txt_result");
  function fun_7() {
      x.value+='7';
  }
  function fun_8() {
      x.value+='8';
  }
  function fun_9() {
      x.value+='9';
  }
  function fun_div() {
      x.value+='/';
  }
  function fun_4() {
      x.value+='4';
  }
  function fun_5() {
      x.value+='5';
  }
  function fun_6() {
      x.value+='6';
  }
  function fun_mul() {
      x.value+='*';
  }
  function fun_1() {
      x.value+='1';
  }
  function fun_2() {
      x.value+='2';
  }
  function fun_3() {
      x.value+='3';
  }
  function fun_sub() {
      x.value+='-';
  }
  function fun_0() {
      x.value+='0';
  }
  function fun_00() {
      x.value+='00';
  }
  function fun_dot() {
      x.value+='.';
  }
  function fun_add() {
      x.value+='+';
  }
  function fun_clear() {
      x.value='';
      y.value='';

  }
</script>
<script>
  function ShowResult(data) {
      var y = document.getElementById('txt_result');
      y.value = data['result'];
  }
</script>
<script>
  $('#lgbut_compute').click(function () {
      $.ajax({
          url:'compute/',
          type:'POST',
          data:{
              'code':$('#txt_code').val()
          },
          dataType:'json',
          success:ShowResult
      })
  })
</script>
</body>
</html>

编写视图函数

import subprocess

from django.http import JsonResponse
from django.shortcuts import render

# Create your views here.
from django.views.decorators.csrf import csrf_exempt
from django.views.decorators.http import require_POST


def home(request):
  return render(request, 'index.html')


@csrf_exempt
def compute(request):
  code = request.POST.get('code')
  try:
      code = 'print(' + code + ')'
      result = subprocess.check_output(['python', '-c', code], universal_newlines=True, stderr=subprocess.STDOUT,timeout=30)
  except:
      result='输入错误'

  return JsonResponse(data={'result': result})

Django+Bootstrap实现计算器的示例代码