en:arduino:libraries:fileprintln
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| + | [[en:arduino:libraries:sd|SD]] : File class | ||
| + | ====== println() ====== | ||
| + | |||
| + | ===== Description ===== | ||
| + | |||
| + | Print data, followed by a carriage return and newline, to the File, which must have been opened for writing. Prints numbers as a sequence of digits, each an ASCII character (e.g. the number 123 is sent as the three characters '1', '2', '3'). | ||
| + | ===== Syntax ===== | ||
| + | |||
| + | file.println() | ||
| + | \\ file.println(data) | ||
| + | \\ file.print(data, BASE) | ||
| + | ===== Parameters ===== | ||
| + | |||
| + | file: an instance of the File class (returned by SD.open()) | ||
| + | |||
| + | data (optional): the data to print (char, byte, int, long, or string) | ||
| + | |||
| + | BASE (optional): the base in which to print numbers: BIN for binary (base 2), DEC for decimal (base 10), OCT for octal (base 8), HEX for hexadecimal (base 16). | ||
| + | ===== Returns ===== | ||
| + | |||
| + | byte | ||
| + | \\ println() will return the number of bytes written, though reading that number is optional | ||
| + | ===== See Also ===== | ||
| + | |||
| + | * print() | ||
| + | * write() | ||
| + | [[en:arduino:libraries|Reference Home]] | ||
en/arduino/libraries/fileprintln.txt · 最后更改: 2016/12/25 22:15 (外部编辑)
