使用Ufun的CFI函数直接判断文件夹和文件等操作

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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。




uc4560 (view source)

Defined in: uf_cfi.h
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# b$ v" r0 {9 i1 d* }1 @, ZOverview
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9 Q6 L+ Q  q( \1 e2 U- NChecks whether the specified file of the given type exists.

2 [. X; n* F& Y/ KNOTE: Mixed or upper case file names may not be found if the
environment variable UGII_OPTION = LOWER is set.
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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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! i: |9 q: w3 v- VReturn
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4 g& ]5 v5 H# M) jReturn code:
< 0 = Error
# s6 y9 s$ V  j- c) \, U+ c= 0 = File Exists
7 f5 X% p' @1 I$ o' c= 1 = File Does Not Exist


+ X5 i# D' Z( k" UEnvironment
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Internal and External
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# y  k! B! Q8 ~+ [' d( m3 MSee Also

For description of file types see table


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int uc4560
(
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int ftype
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)
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const char *	fspec	Input	File to check
int	ftype	Input	File type ( l  |/ U- b: s" n3 v( f" k5 r) }0 will check for files 100 will check for directories

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8 q! k% c2 q; i' s0 _查找文件也可以通过UF_CFI_ask_file_exist
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UF_CFI_ask_file_exist (view source)

Defined in: uf_cfi.h
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Test if a file exists.
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Note: This function only works with files - not directories. To check if a
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Return

" [9 ]4 W; ]$ k# s9 U( T. l0 - No error
  I5 o% Q/ l. l# i1 E8 J9 QOtherwise - Error Code
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Environment

Internal and External
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3 {3 V+ `& k; G' c# z7 ^Originally 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. 0 - file exists 1 - file does not exist 0 S  M' C0 l5 b/ G7 T, w8 S" C