比较两个字符串相同的个数,并输出 

 1  <!DOCTYPE HTML>
 2  <html>
 3 <head>
 4 <meta charset="UTF-8" />
 5 <title>比较两个字符串相同的个数,并输出</title>
 6 <script src="jquery-1.12.4.min.js"></script>
 7 <script type="text/javascript">
 8      var str1 = "istaerriter";
 9      var str2 = "ostaretttr";
10      var len = str1.length > str2.length ? str1.length : str2.length;
11      for(var i=0,newstr=[],num = 0;i<len;i++){
12          if(str1[i] == str2[i]){
13              newstr.push(str1[i]);
14          }else{
15              newstr.push('/');
16          }
17      }
18      var arr = newstr.join("").toString().split('/');
19      for(var i=0,num=0,newarr=[];i<arr.length;i++){
20          num = num > arr[i].length ? num : arr[i].length;
21          newarr = newarr.length < arr[i].length ? arr[i] : newarr;
22      }
23      console.log(arr,num,newarr);
24      var temp = 0;
　　　　 //section2
25      function finder(str1, str2, start, len){
26         if (null == start){
27             start = -1;
28             //保证str1是两者中较短的一个
29             var str1 = str1.length <= str2.length ? str1 : str2;
30             var str2 = str1.length > str2.length ? str1 : str2;
31         }
32         start++;
33         if (!len) {
34             len = str1.length;//较短字符串的长度
35         }
36         var end = start + len;
37         if (end > str1.length) {
38             if (len == 1){
39                 return 0;
40             }
41             return finder (str1, str2, -1, --len);
42         }
43         console.log(start,end,len)
44         temp = str1.substring (start, end);
45         console.log(temp)
46         if (str2.indexOf (temp) != -1) {
47             return temp.length +' / '+temp;
48         }
49        return finder (str1, str2, start, len);
50     }
51    var len =  finder ("souhu.com", "blog.souhu");
52    console.debug(len);　　　　
53 </script>
54 </head>
55 </html>

 

posted @ 2016-11-17 14:32  蛋Mrs炒饭  阅读(521)  评论(0)    收藏  举报