使用Ufun的CFI函数直接判断文件夹和文件等操作

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  R0 n. _& P. o1 w# m& X" B) N# X# y在进行相关文件和文件路径判断时候，ufun提供了内置的方法。
UC4560 通过设置第二个 参数为 100 可以判断文件夹，通过设置 为 0 可以查找文件。



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uc4560 (view source)
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! h! e2 w- r0 B# h. A3 wDefined in: uf_cfi.h

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Checks whether the specified file of the given type exists.
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NOTE: Mixed or upper case file names may not be found if the
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Passing an ftype of 0 will look for a file but does not work for a directory.
To check for a directory the ftype must be set to 100.
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Return code:
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= 0 = File Exists
= 1 = File Does Not Exist
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Environment
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Internal and External
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See Also

For description of file types see table


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gateway
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6 _' P; B1 _! |8 j: Q1 h* Aint uc4560
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6 B9 ~0 L; j! h5 Y1 Vconst char * fspec,
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const char *	fspec	Input	File to check
int	ftype	Input	File type 0 will check for files 9 U" [' u2 T% ~; M  V" J1 @100 will check for directories

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查找文件也可以通过UF_CFI_ask_file_exist
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, ]% R2 _- n% V9 D/ x. _UF_CFI_ask_file_exist (view source)
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! r7 o; M" R6 N% }* zDefined in: uf_cfi.h
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Test if a file exists.

Note: This function only works with files - not directories. To check if a
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Return

0 - No error
Otherwise - Error Code


Environment

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, m: a8 M" L, }0 K/ [2 B4 iOriginally released in V16.0
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int UF_CFI_ask_file_exist
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const char * file_spec,
int * status
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const char *	file_spec	Input	The file to check
int *	status	Output	File existence status.   |! ^8 U- R+ ~7 |8 |0 - file exists 1 - file does not exist ; Z$ o6 c& Y, ^$ X1 d1 R

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