某人三天打渔两天晒网,假设他从1990年1月1日开始打渔三天,然后晒网两天,请编程回答任意的一天他在打渔还是晒网。 A boy works for 3 days while has a 2 days off. If he is working on 1st, Jan, 1990, then for a date entered from the keyboard, please write a program to determine what the...