#include <iostream> /* run this program using the console pauser or add your own getch, system("pause") or input loop */ int main(int argc, char** argv) { int num; scanf("%d",&num); printf("2049%04d\n",num);
scanf("%d",&num); printf("2049%04\n",num); scanf("%d",&num); printf("2049%04\n",num); return 0; }
int main(int argc, char** argv) { int x=1234; float f=123.456; double m=123.456; char ch=‘a‘; char a[]="hello world!"; int y=3,z=4; printf("%d %d\n",y,z); printf("y=%d,z=%d\n",y,z); printf("%8d,%2d\n",x,x); printf("%f,%8f,%8.1f,%0.2f,%.2e\n",f,f,f,f); printf("%1f\n",m); printf("%3c\n",ch); printf("%s\n%15s\n%10.5s\n%2.5s\n%.3s\n",a,a,a,a,a); return 0; }
int main(int argc, char** argv) { double x,y; char c1,c2,c3; int a1,a2,a3; scanf("%1d%1d%1d",&a1,&a2,&a3); printf("%d,%D,%d\n",a1,a2,a3); scanf("%c%c%c",&c1,&c2,&c3); printf("%c,%c,%c\n",c1,c2,c3); scanf("%lf,%lf",&x,&y); printf("%f,%f\n",x,y); return 0; }
int main(int argc, char** argv) { char ans1,ans2; printf("复习了没?(输入y或Y表示复习了,输入n或N表示1没复习):"); ans1=getchar(); getchar(); printf("\n动手敲代码了没?(输入y或Y表示敲了,输入n或N表示木有敲):"); ans2 = getchar(); if(ans1==‘y‘||ans1==‘Y‘&&ans2==‘y‘||ans2==‘Y‘) printf("\n罗马不是一天建成的:)n"); else printf("\n罗马不是一天毁灭的。。。\n"); return 0; }
int main(int argc, char** argv) { char x; x=getchar(); if(x>=‘0‘&&x<=‘9‘) printf("%c是数字字符\n",x); else if(x>=‘A‘&&x<=‘z‘) printf("%c是英文字母\n",x); else printf("%c是其他字符\n",x); return 0; }
int sum, a0,n,q; a0=1; q=2; while(scanf("%d",&n)!=EOF){ sum=a0*(1-pow(q,n+1))/(1-q); printf("n=%d时,sum=%d\n",n,sum); } return 0; }
原文:https://www.cnblogs.com/lcy600/p/14593356.html