string 是C++中的字符串。 字符串对象是一种特殊类型的容器,专门设计来操作的字符序列。 不像传统的c-strings,只是在数组中的一个字符序列，我们称之为字符数组，而C + +字符串对象属于一个类，这个类有很多内置的特点，在操作方式,更直观，另外还有很多有用的成员函数。 string 的定义为:typedef basic_string<char> string -string string C++. The string object is a special type of container, designed to manipulate the sequence of characters. Unlike the traditional c-strings, just a sequence of characters in the array, which we call the array of characters, while the C++ string object belongs to a class, this class has many built-in features in the mode of operation, more intuitive There are also a lot of useful member functions. the string is defined as: typedef of basic_string <char> string