Django+Bootstrap实现计算器的示例代码
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2022-06-09 21:24:00
目录准备工作导入bootstrap前端框架编写前端内容编写视图函数准备工作创建一个应用添加应用到配置创建一个html编写视图函数from django.shortcuts import render#...
准备工作
创建一个应用
添加应用到配置
创建一个html
编写视图函数
from django.shortcuts import render
# create your views here.
def home(request):
return render(request, 'index.html')
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'),
]
导入bootstrap前端框架
将css、fonts、js复制到static文件夹下 没有则创建该文件夹
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})
测试
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