用C#实现由15位身份证号升级到18位的算法!
1using System;
2using System.Collections;
3
4public class MyClass
5{
6 public static void Main()
7 {
8 Console.WriteLine(per15To18("429005811009091"));
9 RL();
10 }
11
12 public static string per15To18(string perIDSrc)
13 {
14 int iS = 0;
15
16 //加权因子常数
17 int[] iW=new int[]{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
18 //校验码常数
19 string LastCode="10X98765432";
20 //新身份证号
21 string perIDNew;
22
23 perIDNew=perIDSrc.Substring(0,6);
24 //填在第6位及第7位上填上‘1’,‘9’两个数字
25 perIDNew += "19";
26
27 perIDNew += perIDSrc.Substring(6,9);
28
29 //进行加权求和
30 for( int i=0; i<17; i++)
31 {
32 iS += int.Parse(perIDNew.Substring(i,1)) * iW[i];
33 }
34
35 //取模运算,得到模值
36 int iY = iS%11;
37 //从LastCode中取得以模为索引号的值,加到身份证的最后一位,即为新身份证号。
38 perIDNew += LastCode.Substring(iY,1);
39
40 return perIDNew;
41 }
42
43
44
45
46 Helper methods
64}
2using System.Collections;
3
4public class MyClass
5{
6 public static void Main()
7 {
8 Console.WriteLine(per15To18("429005811009091"));
9 RL();
10 }
11
12 public static string per15To18(string perIDSrc)
13 {
14 int iS = 0;
15
16 //加权因子常数
17 int[] iW=new int[]{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
18 //校验码常数
19 string LastCode="10X98765432";
20 //新身份证号
21 string perIDNew;
22
23 perIDNew=perIDSrc.Substring(0,6);
24 //填在第6位及第7位上填上‘1’,‘9’两个数字
25 perIDNew += "19";
26
27 perIDNew += perIDSrc.Substring(6,9);
28
29 //进行加权求和
30 for( int i=0; i<17; i++)
31 {
32 iS += int.Parse(perIDNew.Substring(i,1)) * iW[i];
33 }
34
35 //取模运算,得到模值
36 int iY = iS%11;
37 //从LastCode中取得以模为索引号的值,加到身份证的最后一位,即为新身份证号。
38 perIDNew += LastCode.Substring(iY,1);
39
40 return perIDNew;
41 }
42
43
44
45
46 Helper methods
64}