C语言求模运算实例 C语言sizeof运算符 C语言自增运算符实例 C语言求模运算实例 // min_sec.c -- converts seconds to minutes and seconds #include <stdio.h> #define SEC_PER_MIN 60 // seconds in a minute int main(void) { int sec, min, left; printf("Convert seconds to minutes and seconds!\n"); printf("Enter the number of seconds (<=0 to quit):\n"); scanf("%d", &sec); // read number of seconds while (sec > 0) { min = sec / SEC_PER_MIN; // truncated number of minutes left = sec % SEC_PER_MIN; // number of seconds left over printf("%d seconds is %d minutes, %d seconds.\n", sec, min, left); printf("Enter next value (<=0 to quit):\n"); scanf("%d", &sec); } printf("Done!\n"); return 0; } C语言sizeof运算符 C语言自增运算符实例