while

[Control Structures]

描述

while loops 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.

語法

while(expression){
   // statement(s)
}

參數

expression – a (boolean) C statement that evaluates to true or false

範例程式碼

var = 0;
while (var < 200) {
  // do something repetitive 200 times
  var++;
}

參考

• [EXAMPLE] While Loop

語法參考主頁面

86Duino 參考的文本是根據 Creative Commons Attribution-ShareAlike 3.0 License，部分文本是從 the Arduino reference 修改的。 參考中的代碼示例已發佈到公共領域。