C ++ basic tutorial-input statements

Iii. Input statements

We have learned the output statement cout. in this section, we will learn the input statement cin (read as c-in). Let's take a look at this exercise;

1. Start Geany

1) Click "Application-programming-Geany" in the menu to start Geany and create a c ++ source program;

2) Click the "file-save as" command to save the file to your folder with "shuru" as the file name;

2. Enter the program code.

1) in the following blue code area, enter the following statement:

Int a = 0;

Cout <"input :";

Cin>;

Cout <"a =" <;

2) The first line defines an integer variable a with a value of 0,

The second line displays a prompt. The third line executes the input statement (read as c-in), and the fourth line displays the content in variable;

3) after saving, compiling, generating, and running, a prompt is displayed first. The cursor is flashing and a number is required;

4) press the keyboard, enter 20, and then press the Enter key to display that the value of variable a is 20;

5) You can also enter multiple numbers in the cin statement, for example, cin> a> B. separate the two numbers with spaces during running;

Try to exercise and enter two numbers at the same time;

# Include <iostream>

Using namespace std;

Int main (int argc, char ** argv)

{

Int a = 0;

Cout <"input :";

Cin>;

Cout <"a =" <;

Return 0;

}