C语言编写日历答:print_calendar(y);} } void print_calendar(int y) //打印日历 { int i,sum,days,k,m;char monthname[12][20] = {"January","February","March","April","May","June","July","August","September","October","November","December"};if((0==y%4&&y%100!=0)||0==y%400 )...