编辑views.py from django.shortcuts import render from django.shortcuts import HttpResponse #此行增加 # Create your views here. def plan(request): #此函数增加 user=[] for i in range(20): user.append({'username':'jack'+str(i),'age':18+i}) return render(request,'h
用5个div,布局从左到右5张图片,从左到右5个div分别指定ID为img1,img2,img3,img4,img5.(背景是relative,5个div是相对于背景absolute定位) 显示如下: 方法一:(把一个div直接赋值给另一个,轮播一次要for循环5下) function autoplay(){ var x,y,baoliu; baoliu=document.getElementById("img5").style.backgroundImage; for(i=5;i&g
for...in...笔记: for...in...标签: for...in...类似于Python中的for...in....可以遍历列表.元组.字符串.字典等一切可以遍历的对象.示例代码如下: {% for person in persons %} <p>{{ person.name }}</p> {% endfor %} 如果想要反向遍历,那么在遍历的时候就加上一个reversed.示例代码如下: {% for person in persons reversed %} &l
namespace 打印乘法口诀{ class Program { static void Main(string[] args) { for (int i = 1; i <=9; i++)//行数循环九次, { for (int j = 1; j<=i; j++)//当i等于1的时候,j等于1, { Consol
select t2.* from --两层嵌套 (select t.* , rownum as row_numfrom t where rownum <=20) t2 where t2.row_num > 11 select t3.* from ( --三层嵌套select t2.*, rownum as row_num from (select * from t) t2 where rownum<=20) t3 where t2.row_num>11 两层嵌套 ==三
