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This article introduces the code for implementing a perpetual calendar program using c language. I hope it will be helpful to friends who are learning c language!
C language perpetual calendar program code
The code for implementing the perpetual calendar program in C language is as follows:
#include <stdio.h> int year(int y) { if ((y%4==0) && (y%100!=0) || y%400==0) return 366; else return 365; } int main() { int y; int i,j,sum=0; int begin,week; int days[12]={31,28,31,30,31,30,31,31,30,31,30,31}; scanf("%d",&y); for(i=1;i<y;i++) sum+=year(i); week=(sum+1)%7; //表示该年1月1日为星期几 if(year(y)==366) days[1]=29; printf("\n%d年日历如下:\n\n",y); for(i=0;i<12;i++) { printf(" %d月 \n",i+1); printf(" 7 1 2 3 4 5 6\n"); printf("=====================\n"); begin=1; for(j=0;j<week;j++) printf(" "); while(begin<=days[i]) { printf("%3d",begin); begin++; week=(week+1)%7; if(week%7==0) printf("\n"); } printf("\n\n"); } return 0; }
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