摘要：
#include <stdio.h> int main() { int x, y; int r1, r2, r3, r4; x = 1; y = 2; r1 = x + y; r2 = x - y; r3 = x * y; r4 = x / y; printf("r1 = %d\n", r1); p 阅读全文
摘要：
#include<stdio.h> int main() { printf(" O \n"); printf("<H>\n"); printf("I I\n"); } #include<stdio.h> int main() { printf(" O \n"); printf("<H>\n"); p 阅读全文