#include <stdio.h>#include <conio.h> #include <stdlib.h> int Year=2012; int Month=4; int MonthDays[] = {31 , 28 , 31 , 30 , 31 , 30 , 31 , 31 , 30 , 31 , 30 , 31}; char IsLeapYear(int Year) { if((Year % 4 == 0 && Year % 100 != 0) || Year % 400 == 0) { return 1 ; } else { return 0 ; } } int GetFirstDay(int year,int month,int day) { int week=0; int c=0,y=0; if (month==1) { year--; month=13; } if (month==2) { year--; month=14; } c=year/100; y=year%100; week=(c/4)-2*c+y+(y/4)+(26*(month+1)/10)+day-1; week%=7; if (week<0) { week+=7; } return week; } void DisMonthDays(int year,int month) { int i; int tmp=0; int week=0; printf(" %d 年 %d 月\n",year,month); printf("日 一 二 三 四 五 六\n"); tmp=MonthDays[month-1]; if (month==2) { if (IsLeapYear(year)) { tmp=MonthDays[month-1]+1; } else tmp=MonthDays[month-1]; } week=GetFirstDay(year,month,1); for(i=0;i<week;i++) { printf(" "); } for(i=1;i<=tmp;i++) { printf("%2d ",i); if (week>=6) { week=0; printf("\n"); } else week++; } } void GetKey() { int key; key = getche(); if(key==224) { key = getche(); if (key==72) { Month++; if (Month>12) { Month=1; Year++; } } else if (key==80) { Month--; if (Month<1) { Month=12; Year--; } } } } void main(void) { while (1) { DisMonthDays(Year,Month); GetKey(); printf("\n"); system("cls"); } }
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