• cin.get()和cin << 的区别

cin会忽略掉回车和换行符

• cin.get()和cin.get(char)的区别
  • 返回类型不同
    • cin.get()返回char类型
    • cin.get(char)返回一个cin的对象
  • 判断输入结束时不同
    • cin.get(char) 通过判断 cin.fail() == false 来判定 EOF ```cpp

      include

int main() { using namespace std; char ch; int count = 0;

cin.get(ch);
while (cin.faile() == false)
{
    cout << ch;
    count++;
    cin.get(ch);
}
cout << endl << cout << "characters read" << endl;
return 0;

}

      - cin.get()通过 ch != EOF 来判定
```cpp
    int ch;
    ch = cin.get();
    while (ch != EOF)
    {
        cout.put(ch);
        count++;
        ch = cin.get();
    }