available()

描述

檢查檔案是否還有可讀取的資料。

available() 是從 Stream 繼承而來。

語法


file.available()

參數

file:被 SD.open() 回傳的 File 物件

回傳

int:可讀資料的位元組數量

See Also

read()
peek()
Stream.available()


函式庫參考主頁面

The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.