Are #define and printf C statements?

##Are define and printf c statements?

#Both define and printf arenot c statements, #define is a preprocessing command, and printf is a function in the standard library.

#C language statements are used to issue operating instructions to the computer system. A statement generates several machine instructions after compilation. C statements are used to complete certain operating tasks.

C statements can be divided into the following five categories:

1. Expression statements

Expression statements consist of expressions It is composed by adding a semicolon ";".

Its general form is: expression; executing an expression statement is to calculate the value of the expression and perform side effects.

2. Label statements

There are three types of label statements:

Tag name: statement

case constant expression: statement

default: statement

Description: The case statement and default statement only appear in the switch statement.

3. Loop statements

There are 4 types of loop statements, namely

while ( expression ) statement do statement while ( expression ) ; for ( expression(opt) ; expression(opt) ; expression(opt) ) statement for ( declaration expressionopt ; expressionopt ) statement

Loop statements are used to implement the loop flow of the program.

4. Compound statement

A statement enclosed by brackets {} is called a compound statement. Compound statements should be regarded as a single statement in the program rather than multiple statements. For example,

{ x=y+z； a=b+c； printf(“%d%d”，x，a)； }

is a compound statement.

5. Jump Statements

There are 4 types of jump statements, namely

goto 标签 ; continue ; break ; return 表达式(可选) ;

Jump statements control the program to jump to another place implement.

Recommended learning:c language video tutorial

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