(2)使用f_mount,f_close等文件功能函数出错时,请看其返回函数为何值,更容易调试。 typedefenum{ FR_OK=0,/*(0) Succeeded*/FR_DISK_ERR,/*(1) A hard error occurred in the low level disk I/O layer*/FR_INT_ERR,/*(2) Assertion failed*/FR_NOT_READY,/*(3) The physical drive cannot wo...