SD.rmdir()

SD

rmdir() 描述 Remove a directory from the SD card. The directory must be empty. 语法 SD.rmdir(filename) 参数 filename: the name of the directory to remove, with sub-directories separated by forward-slashes, / 返回值 true if the removal of the directory succeeded, false if not. (if the directory didn't exist, the return value is unspecified)

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