VC++
T C
定义年月日和其他变量int day,month,year,sum,leap;
输出:please input year,month,day;告诉用户输入年月日printf('\nplease input year,month,day\n');
获取键盘输入的字符,用十进制定义scanf('%d,%d,%d',&year,&month,&day);
计算某月以前月份的总天数switch(month){ case 1:sum=0;break; case 2:sum=31;break; case 3:sum=59;break; case 4:sum=90;break; case 5:sum=120;break; case 6:sum=151;break; case 7:sum=181;break; case 8:sum=212;break; case 9:sum=243;break; case 10:sum=273;break; case 11:sum=304;break; case 12:sum=334;break; defaultrintf('data error');break; }
加上某天的天数;判断是不是闰年sum=sum+day; if(year%400==0||(year%4==0&&year%100!=0)) leap=1; else leap=0;
如果是闰年且月份大于2,总天数应该加一天;sum自加if(leap==1&&month>2sum++;
输出变量printf('It is the %dth day.',sum); }
全部代码main() { int day,month,year,sum,leap; printf('\nplease input year,month,day\n'); scanf('%d,%d,%d',&year,&month,&day); switch(month){ case 1:sum=0;break; case 2:sum=31;break; case 3:sum=59;break; case 4:sum=90;break; case 5:sum=120;break; case 6:sum=151;break; case 7:sum=181;break; case 8:sum=212;break; case 9:sum=243;break; case 10:sum=273;break; case 11:sum=304;break; case 12:sum=334;break; defaultrintf('data error');break; } sum=sum+day; if(year%400==0||(year%4==0&&year%100!=0)) leap=1; else leap=0; if(leap==1&&month>2)sum++; printf('It is the %dth day.',sum); }
注意变量是十进制
\n是下一行的意思