String类的输入和输出及基本操作

#include <iostream>#include <string>using namespace std;const int StringSize = 20;int main(void){char stringclass1[StringSize];char stringclass2[StringSize];cout << "Enter stringclass1: ";cin.get(stringclass1, StringSize).get();//程序输入语句也可使用cin.getline(stringclass1, StringSize)//使用整行字符串输入结尾可不加.get()cout << "Enter stringclass2: ";cin.get(stringclass2,StringSize).get();/*错误代码如下*//*cout << "Enter stringclass1: ";cin.get(stringclass1, StringSize); //后面不加get(),无法处理接下来的换行符cout << "Enter stringclass2: ";cin.get(stringclass2, StringSize).get(); //直接用cin.get()是乱码*/cout << "stringclass1的字符串长度为" << strlen(stringclass1) << endl;cout << "stringclass1 = " << stringclass1 << endl;cout << "stringclass2的字符串长度为" << strlen(stringclass2) << endl;cout << "stringclass2 = " << stringclass2 << endl;//cout << "stringclass1 + stringclass2 = " << stringclass1 + stringclass2 << endl;cout << "strcpy(stringclass1,stringclass2) = " << strcpy(stringclass1, stringclass2) << endl;return 0;}