最近在学习Django，跟着视频写了一个学生系统，主要是增删改查操作，界面丑的一匹
1.url.py
from django.contrib import admin
from django.urls import path,re_path
from app01.views import classes
from app01.views import teachers
from app01.views import students urlpatterns = [
path('admin/', admin.site.urls),
re_path('get_classes.html$', classes.get_classes),
re_path('add_classes.html$', classes.add_classes),
re_path('update_classes.html$', classes.update_classes),
# re_path('edit_classes.html$', classes.edit_classes),
re_path('del_classes.html$', classes.del_classes),
re_path('get_students.html$', students.get_students),
re_path('add_students.html$', students.add_students),
]
2.models.py
from django.db import models # Create your models here.
class Classes(models.Model):
title = models.CharField(max_length=)
m =models.ManyToManyField("Teachers") class Teachers(models.Model):
name = models.CharField(max_length=) class Students(models.Model):
username = models.CharField(max_length=)
age = models.IntegerField()
gender = models.BooleanField()
cs = models.ForeignKey(Classes,on_delete=models.CASCADE,)
3.get_students.html(获取学生信息)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>
<a href="/add_students.html">添加</a>
</div>
<div>
<table border="">
<thead>
<tr>
<th>ID</th>
<th>姓名</th>
<th>性别</th>
<th>年龄</th>
<th>班级</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for row in stu_list %}
<tr nid="{{ row.id }}">
<td>
{{ row.id }}
</td>
<td>
{{ row.username }}
</td>
<td>
{{ row.gender }}
</td>
<td>
{{ row.age }}
</td>
<td>
{{ row.cs.title }}
</td>
<td>
<a href="/del_students.html?nid={{ row.id }}">删除</a>
<a href="/edit_students.html?nid={{ row.id }}">编辑</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</body>
</html>
4.add_students.html(添加学生)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h3>添加用户</h3>
<form method="POST" action="/add_students.html">
{% csrf_token %}
<p><input type="text" name="username" placeholder="用户名" /></p>
<p><input type="text" name="age" placeholder="年龄" /></p>
<p>
男：<input type="radio" name="gender" value="" />
女：<input type="radio" name="gender" value="" />
{# name=gender是为了互斥#}
</p>
<p>
<select name="cs">
{% for row in cs_list %}
<option value="{{ row.id }}">{{ row.title }}</option>
{% endfor %}
</select>
</p>
<input type="submit" value="提交">
</form> </body>
</html>
导致报错的原因：用户名和年龄的input标签少了一斜杠
