摘要：
我们可以用一个数组来模拟集合，add运算用以实现集合元素的增加，delete运算用于实现集合元素的删除，find运算用以实现集合元素的查找，但是目前集合元素类型未知，可以是int、char、double等基本数据类型，也可以是String、Time、Student等对象类型，要求采用模板函数实现集合 阅读全文
摘要：
Calendars in widespread use today include the Gregorian calendar, which is the de facto international standard, and is used almost everywhere in the w 阅读全文
摘要：
In mathematics, the Pythagorean theorem — is a relation in Euclidean geometry among the three sides of a right-angled triangle. In terms of areas, it 阅读全文