转换字符串格式为：源字符串里的字符+该字符连续出现的个数

void ConvertStr(char * pStr, char * pOutput)
{
char * pCurrent =pStr;
char * pNext;
int nCount = 1;
int i = 0;
while (*pCurrent != '\0')
{
pNext = pCurrent + 1;
while (*pCurrent == *pNext)  //相邻字符串比较
{
++nCount;   //相等则继续比较下一个字符
++pNext;
}
sprintf(pOutput + strlen(pOutput), "%c%d", *pCurrent, nCount);  //打印字符及其连续出现的个数到字符串中
nCount = 1;    //计数归位
pCurrent = pNext;   //让pCurrent指向下一次将要统计的字符
}
}