How to input two variables in c++

Enter two variables in C: 1. Declare the variable; 2. Use cin to receive input; 3. Press Enter to end the input.

How to use C to input two variables

In C, you can use the following steps to input two variables:

1. Declare variables

First, you need to declare the types of these two variables, for example:

<code class="cpp">int num1, num2; // 声明两个整型变量</code>

2. Use cin to receive Input

Use the cin >> operator to receive the user's input from standard input and store it in a variable, for example:

<code class="cpp">cout << "请输入第一个数字：";
cin >> num1;
cout << "请输入第二个数字：";
cin >> num2;</code>

3. Press the Enter key to end the input

After the user enters two numbers, press the Enter key to end the input.

Example:

<code class="cpp">#include <iostream>

using namespace std;

int main() {
  int num1, num2;

  cout << "请输入第一个数字：";
  cin >> num1;
  cout << "请输入第二个数字：";
  cin >> num2;

  cout << "输入的两个数字是：" << num1 << " 和 " << num2 << endl;

  return 0;
}</code>

In this example, the program first declares two integer variables num1 and num2. Then, use cout to output a statement that prompts the user to enter a number. Use cin to receive two numbers entered by the user. Finally, use cout to output the two numbers entered.

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