实验一 熟悉C语言编程环境

#include<stdio.h>
#include<stdio.h>
 
char* month_str[]={"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};
int
mon_day[][12]={{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
 
int IsLeapYear(int year)     /*find out the year is leap year or not*/
{
    if((year%4==0&&year%100!=0)||(year%400==0))
        return 1;
    else
        return 0;
}
 
int DaySearch(int year,int month,int day)/*search what day this day is*/
{
    int days=0;
    int m,i;
    for (i=1900;i<year;i++)
        if(IsLeapYear(i))days=days+366;
        else days=days+365;
    for(m=1;m<month;m++)
        days=days+mon_day[IsLeapYear(year)][m-1];
    return((int)days%7);
}
 
int PrintAllYear(int year)/*print the all year*/
{
    int temp;
    int i,j;
    printf("

                                  %d Calander
",year);
    for(i=1;i<=12;i++){
        printf("

                     %s

",month_str[i-1]);
        printf("星期一 星期二 星期三 星期四 星期五 星期六 星期日
");
        temp=DaySearch(year,i,1);/*本月的一号是星期几*/
        for(j=1;j<=mon_day[IsLeapYear(year)][i-1]+temp;j++)
        {
            if(j-temp<=0)            printf("            ");
            else if(j-temp<10) printf("%d           ",j-temp);
                else printf("%d          ",j-temp);
                if(j%7==0) printf("
");
        }
    }
    return 0;
}
 
int main()
{
    int optin=1;
    char ch;
    int year,month,day;
 
    while (1) {
        printf("
请输入你要打印的年份(XXXX)");
        scanf("%d",&year);
        PrintAllYear(year);
        printf("
还要继续打印吗？(Y/N)
");
        scanf("
%c",&ch);
        if(ch=='N'||ch=='n')break;
    }
    return 0;
}
    

#include <stdio.h>
int main()
{
    printf("     ***         ***
");
    printf("  *       *   *       *
");
    printf("*           *           *
");
    printf("  *                   *
");
    printf("    *               *
");
    printf("      *           *
");
    printf("        *       *
");
    printf("          *   *
");
    printf("            *
");

    return 0;
}