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;
}