en:arduino:libraries:sdexists
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| + | [[en:arduino:libraries:sd|SD]] | ||
| + | ====== exists() ====== | ||
| + | |||
| + | ===== Description ===== | ||
| + | |||
| + | Tests whether a file or directory exists on the SD card. | ||
| + | ===== Syntax ===== | ||
| + | |||
| + | SD.exists(filename) | ||
| + | ===== Parameters ===== | ||
| + | |||
| + | filename: the name of the file to test for existence, which can include directories (delimited by forward-slashes, /) | ||
| + | ===== Returns ===== | ||
| + | |||
| + | true if the file or directory exists, false if not | ||
| + | |||
| + | Reference Home | ||
en/arduino/libraries/sdexists.txt · 最后更改: 2016/12/25 22:15 (外部编辑)
