C Language 32 Keywords

Source: Internet
Author: User

Key words

Description

Auto

Declaring automatic variables

Short

Declaring a short-integer variable or function

Int

Declaring an integer variable or function

Long

Declaring a long integer variable or function

Float

Declaring a floating-point variable or function

Double

Declaring a double-precision variable or function

Char

Declaring a character variable or function

struct

Declaring struct-body variables or functions

Union

Declaring a shared data type

Enum

declaring enum types

typedef

Used to alias data types

Const

Declaring read-only variables

Unsigned

Declaring an unsigned type variable or function

Signed

Declaring a signed type variable or function

extern

Declaring a variable is declaring it in another file

Register

Declaring Register variables

Static

declaring static variables

Volatile

Explanatory variables can be implicitly changed in program execution

void

Declaring a function with no return value or no argument, declaring an untyped pointer

If

Conditional statements

Else

Conditional statement Negation Branch (with IF)

Switch

For switch statements

Case

Switch Statement Branch

For

A circular statement

Do

Loop body of a looping statement

While

Looping conditions for a loop statement

Goto

Unconditional Jump Statement

Continue

End the current loop and start the next cycle

Break

Jump out of the current loop

Default

The "other" branch in the switch statement

sizeof

Calculate data type length

Return

Subroutine return statement (can be with or without parameters) loop condition

C Language 32 Keywords

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