C语言，字符串压缩。一个非常 好的学习debug的案例。

压缩前的数据: aaaacc333bkkkggggd
压缩后的数据: a|4c|23|3b|1k|3g|4d|1

#define _CRT_SECURE_NO_WARNINGS
#include
#include
#include
#include
#include
 
void fun(char s[])
{
    int i, j, n, c, k;
    char ch;
    for (i = 0; s[i]; i++)
    {
        c = 1;
        ch = s[i];
        for (j = i + 1; s[j]; j++)
        {
            if (ch != s[j])
            {
                break;
            }
            c++;
        }
        j = j - 1;
        /**********Program**********/
        if (c == 1) {
            //右移2
            for (k = strlen(s); k > j; k--)
                s[k + 2] = s[k];
            s[i] = ch;
            s[i + 1] = '|';
            s[i + 2] = '0' + c;
            i = j + 2;
           
        }
        else if (c == 2) {
            //右移1
            for (k = strlen(s); k > j; k--)
                s[k + 1] = s[k];
 
            s[i] = ch;
            s[i+1] = '|';
            s[i+2] = '0' + c;            
            i = j+1; 
            
 
        }
        else if(c == 3) {
            //不移            
            s[i] = ch;
            s[i + 1] = '|';
            s[i + 2] = '0' + c;
            i = j;
            
        }
        else {
            //不移，直接拼接           
            
            s[i] = ch;
            s[i + 1] = '|';
            s[i+2] = '0' + c;
            s[i+3] = '\0';          
 
            i = strlen(s)-1;
            strcat(s, &s[j+1]);
            
        }
 
        /**********  End  **********/
    }
}
int main()
{
    char s[100] = "aaaacc333bkkkggggd";
    printf("压缩前的数据: ");
    puts(s);
    fun(s);
    printf("压缩后的数据: ");
    puts(s);
    return 0;
}