while Condition boolean expression true false คำสั่งวนลูปwhile จริงทำเท็จไม่ทำ
27/1/2561 SONGCHAI
PRAPATRUNGSEE
while Condition boolean expression true false คำสั่งวนลูปwhile จริงทำเท็จไม่ทำ
while
[Control Structure]
Description
A while loop will loop continuously,
and infinitely, until the expression inside the parenthesis, () becomes false.
Something must change the tested variable, or the while loop will never exit.
This could be in your code, such as an incremented variable, or an external
condition, such as testing a sensor.
Syntax
while(condition)
{
statement(s)
}
The condition is a boolean
expression that evaluates to true or false.
Example Code
var = 0;
while(var < 5){
// do something repetitive 5 times
var++;
}
/////////////////////////////////////////////////////////////////////
/* 27/1/2561
while condition
by SOM MCU */
#include <REGX51.H>//REGISTER
MCU
void main (void)
{
char
var = 0;
while(1)
{
while(var < 5)
{
var++;
}
var--;
}
}
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