C-Language Summary (2)

1. The function printf ("") can output any fixed content in double quotes.

2. You must precede the program with the pre-processing command .

3. #include <stdio.h> not required ";", ":".

4. Any program must contain one: main function main.

5. Each statement must be followed by: a semicolon .

6. If the content branch is displayed, you can add the newline character \ nin the double quotation marks of the printf statement.

7. A value that cannot be changed is called a constant , and the amount whose value can be changed is called a variable .

8.int defines an integer variable, double defines a dual-precision floating-point variable.

9.

：

do{

Loop Body Statement

}while (expression)

10. Judge a three-digit number.

    printf (" single digit is:%d\n", n%);    printf (" 10 digits are:%d\n", n/);    printf ("The Hundred figures are:%d\n",n/);

C-Language Summary (2)