available()
描述
检查档案是否还有可读取的资料。
available()
是从 Stream
继承而来。
语法
file.available()
参数
file
:被 SD.open()
回传的 File
物件
回传
int
:可读资料的位元组数量
See Also
- read()
- peek()
- Stream.available()
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.