前端经典笔试题（腾讯前端，三栏布局）

时间 2019-12-01

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前端经典笔试题（腾讯前端，三栏布局）

旧公司辞职的工做已经作得七七八八了，今天去了一家公司招聘会，周末的招聘会，说明仍是有心要找人的。html

刚去到，感受人特别的多。不过一个小时的笔试事后人已经见少了。前端

其中有一首题，以为特别经典，当时在搜索笔试题时有见过，源于腾讯的一道题。当时感受纯笔头写有纰漏，在此从新写一篇。布局

实现一个三栏布局的网页，中间部分要自适应宽度而且优先加载。左边宽150px;右边栏宽200px;spa

个人思路：既然左右有固定宽度，固然要设置了。中间优先加载，按照HTML顺序解释的原则，即中间放在文档前面。而中间放在前又会影响文档流的布局，因此在此改变一下元素的相对位置便可，解法应该有很多，解法网上能搜索到的很多，在此把本身的思路记录下来。code

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <style>
 5            div{float:left;}
 6            #left{width:150px;position:absolute;left:0px;}
 7            #right{width:200px;float:right;}
 8            #middle{position:relative;left:150px;}
 9        </style>
10 </head>
11 <body>
12     <div id="middle">
13             middle;middle;
14     </div>
15     <div id="left">left</div>
16     <div id="right">right</div>
17 </body>
18 </html>

V2.0 中间适应宽度htm

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <style>
 5            body{margin:0; padding:0;}
 6            #left{float:left;width:150px;background:red;}
 7            #right{float:right;width:200px;background:green;}
 8            #middle{position:absolute;left:150px;right:200px;word-wrap:break-word;background:blue;}
 9        </style>
10 </head>
11 <body>
12     <div id="middle">
13             middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;
14             middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;
15     </div>
16     <div id="left">left</div>
17     <div id="right">right</div>
18 </body>
19 </html>

V 3.0 中间适应宽度，总体适应高度blog

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <style>
 5         body{margin:0; padding:0;}
 6        #left{width:150px;position:absolute;left:0;top:0;}
 7        #right{width:200px;position:absolute;right:0; top:0;}
 8        #middle{word-wrap:break-word;}
 9        
10 
11      #backLeft{background:red;padding-left:150px;}       
12      #backMiddle{background:blue;padding-right:200px;}
13      #backRight{background:green;}
14        </style>
15 </head>
16 <body>
17              <div id="backLeft">
18                 <div id="backMiddle">
19                     <div id="backRight">
20                 <div id="middle">
21                             middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;
22                             middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;middle;
23                             <p>middle;</p>
24                             <p>middle;</p>
25                             <p>middle;</p>
26                             <p>middle;</p>
27                             <p>middle;</p>
28                             <p>middle;</p>
29                             <p>middle;</p>
30                             <p>middle;</p>
31                             <p>middle;</p>
32                             <p>middle;</p>
33                             <p>middle;</p>
34                             <p>middle;</p>
35                             <p>middle;</p>
36                             <p>middle;</p>
37                             <p>middle;</p>
38                 </div>    
39                 <div id="right">right</div>
40                     <div id="left">left</div>
41                     </div>    
42                 </div>    
43              </div>                        
44 </body>
45 </html>