实现iota函数
void Reverse(char *s) { char temp; char *p = s; char *q = s; while (*p != '\0') { p ++; } q --; while (p > q) { temp = *p; *q ++ = *p; *q -- = temp; } return s; } char* My_Itoa(int nval) { static char cBuff[100] = {0}; int i = 0; int nTempVal = nval; if (nval < 0) { nval = -1 * nval; } do { cBuff[i ++] = (nval % 10) + '0'; nval = nval / 10; }while (nval > 0); if (nTempVal < 0) { cBuff[i ++] = '-'; } cBuff[i] = '\0'; return cBuff; }