摘要： 题设有两个要求：Do not use any built-in date functions in your computer language.Don't just precompute the answers, either, please.没理解，不管怎么样算是练基本功吧打了好长个程序。procedure leapyear用于计算当前年是闰年。procedure unleapyear用于计算当前年非闰年。start表示当前年Jan. 1st是星期几。注意一个小细节就是输出顺序：Saturday, Sunday, Monday, Tuesday, ..., Friday.Frida 阅读全文