谁能详细解释一下这个程序

Question

#include <iostream>
using namespace std;

int main()
{
   const int SIZE=4;
   char Sentence[SIZE];
   char Sentence2[SIZE];

   cout << "Enter the sentence" <<endl;
   cin >> Sentence;

   cout << "\nThe string read with cin was"
 << endl <<Sentence <<endl;
  char ch = cin.get();

  cout << "Enter the second sentence: "<<endl;
  cin.get(Sentence2,SIZE,'$');
  cout << Sentence2 <<endl;
}

输出

Enter the sentence
This is my first sentence

The string read with cin was
This
Enter the second sentence:
is

我刚开始学习 C++，我无法理解这个程序以及它的输出。请任何人建议我从哪里学习或详细解释它。

Answer 1

cout << "Enter the second sentence: "<<endl;

将Enter the second sentence: 打印到控制台。

cin.get(Sentence2,SIZE,'$');

最多可读取SIZE - 1 字符数，或直到第一个$ 字符从控制台到Sentence2 数组（包括空格字符。为零终止符保留1 个字符）。

cout << Sentence2 <<endl;

将Sentence2 变量打印到控制台。