实验三 简单的分支与循环结构
//计算圆的面积
#include<stdio.h> int main(void) { double R,S; printf("Enter R:"); scanf("%Lf",&R); if(R>0){ S=3.14*R*R; } else{ printf("It is wrong"); } printf("S=%.2f\n",S); return 0; }
#include<stdio.h> int main() { int c1,c2,c3,c4; scanf("%d%d",&c1,&c2); printf("%d\n",c1+c2); getchar(); c3=getchar(); c4=getchar(); printf("%d\n",c3+c4); return 0; }
#include<stdio.h> int main() { char c1,c2,c3,c4; scanf("%c%c",&c1,&c2); printf("%c %c\n",c1,c2); getchar(); c3=getchar(); c4=getchar(); printf("%c %c\n",c3,c4); printf(%c %c %c %c\n",c1,c2,c3,c4); return 0; }