/* 回车符 的使用示例:重写行 */ #include <time.h> #include <stdio.h> /*--- 等待x毫秒 ---*/ int sleep(unsigned long x) { clock_t c1 = clock(), c2; do { if ((c2 = clock()) == (clock_t)-1) /* 错误 */ return 0; } while (1000.0 * (c2 - c1) / CLOCKS_PER_SEC < x); return 1; } int main(void) { printf("My name is BohYoh."); fflush(stdout); sleep(2000); printf(" How do you do? "); fflush(stdout); sleep(2000); printf(" Thanks. "); return 0; }