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en:arduino:libraries:filewrite [2016/12/25 22:15] |
en:arduino:libraries:filewrite [2016/12/25 22:15] (当前版本) |
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+ | [[en:arduino:libraries:sd|SD]] : File class | ||
+ | ====== write() ====== | ||
+ | |||
+ | ===== Description ===== | ||
+ | |||
+ | Write data to the file. | ||
+ | ===== Syntax ===== | ||
+ | |||
+ | file.write(data) | ||
+ | \\ file.write(buf, len) | ||
+ | ===== Parameters ===== | ||
+ | |||
+ | file: an instance of the File class (returned by SD.open()) | ||
+ | |||
+ | data: the byte, char, or string (char *) to write | ||
+ | |||
+ | buf: an array of characters or bytes | ||
+ | |||
+ | len: the number of elements in buf | ||
+ | ===== Returns ===== | ||
+ | |||
+ | byte | ||
+ | \\ write() will return the number of bytes written, though reading that number is optional | ||
+ | ===== See Also ===== | ||
+ | |||
+ | * print() | ||
+ | * println() | ||
+ | * read() | ||
+ | [[en:arduino:libraries|Reference Home]] |