交叉合并：如字符串一为：abcd 字符串二为：1234
则结果为：a1b2c3d4
1 import java.util.ArrayList;
2 import java.util.List;
3
4 public class A {
5 public static void main(String[] args) {
6 String a[] ={"a","b","c"};
7 String b[] ={"1","2","3"};
8 CombineTwoArray(a, b);
9 System.out.println(CombineTwoArray(a, b));
10 }
11
12 public static List<String> CombineTwoArray(String[] first, String[] second) {
13 List<String> outlist = new ArrayList<String>();
14 int index = 0;
15 while (index < first.length && index < second.length) {
16 outlist.add(first[index]);
17 outlist.add(second[index]);
18 ++index;
19 }
20 if (index >= first.length) {
21 for (int i = index; i < second.length; i++) {
22 outlist.add(second[i]);
23 }
24 } else {
25 for (int i = index; i < first.length; i++) {
26 outlist.add(first[i]);
27 }
28 }
29 return outlist;
30 }
31 }
用js的写法:
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>第十五题：交叉合并字符串</title>
5 <style>
6 #form{
7 margin: 0 auto;
8 width:500px;
9 top:100px;
10 height:300px;
11 }
12 </style>
13 <script type="text/javascript">
14 var reg = "^[A-Za-z0-9]+$";
15 function check(){
16 var str1 =document.all.str1.value;
17 var str2 =document.all.str2.value;
18 if(str1==""){
19 alert("字符串一不允许为空!");
20 document.all.str1.focus();
21 return;
22 }else if(!/^[A-Za-z0-9]+$/.test(str1)){
23 alert("字符串一只能是数字和字母的组合");
24 document.all.str1.focus();
25 return;
26 }else if(str2==""){
27 alert("字符串二不允许为空!");
28 document.all.str2.focus();
29 return;
30 }else if(!/^[A-Za-z0-9]+$/.test(str2)){
31 alert("字符串二只能是数字和字母的组合");
32 document.all.str2.focus();
33 return;
34 }
35 var string="";
36 var font1 = "<font style=‘color:red;‘>";
37 var font2 = "<font style=‘color:blue;‘>";
38 var fontend = "</font>";
39 if(str1.length>=str2.length){
40 for(var i =0;i<str1.length;i++){
41 if(i< str2.length){
42 string += font1+str1[i]+fontend+ font2+ str2[i]+fontend;
43 }else{
44 string += font1+str1[i];
45 }
46
47 }
48 }else{
49 for(var i =0;i<str2.length;i++){
50 if(i< str1.length){
51 string += font1+str1[i]+fontend + font2+str2[i]+fontend;
52 }else{
53 string += font2+str2[i]+fontend;
54 }
55
56 }
57 }
58 document.all.result.innerHTML = string;
59 }
60 </script>
61 </head>
62
63 <body>
64 <div id="form">
65 <center><h2>第十五题：交叉合并字符串</h2></center>
66 字符串1:<input type="text" id="str1"/><br/>
67 字符串2:<input type="text" id="str2"/><br/>
68 <input type="button" value="交叉合并字符串" onclick="check();"/>
69 <br />
70 <div id="result"></div>
71 </div>
72
73 </body>
74 </html>
时间： 2024-08-30 02:49:40