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。
  B2 o) e4 P- Y9 F& S/ n2 j8 j4 uUC4560 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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7 m* L. A* I* A/ W2 vDefined in: uf_cfi.h


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& n( Z0 c- d8 Y! `  l" [  d3 ?4 qChecks whether the specified file of the given type exists.
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1 a, c& U! d/ k( x2 FNOTE: Mixed or upper case file names may not be found if the
environment variable UGII_OPTION = LOWER is set.

Passing an ftype of 0 will look for a file but does not work for a directory.
: X/ O3 W% x8 l/ @2 CTo check for a directory the ftype must be set to 100.
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Return

Return code:
' P9 @3 l$ \1 [) X+ r# n$ O2 `< 0 = Error
0 I- f7 f2 _2 u! Q8 y! b= 0 = File Exists
= 1 = File Does Not Exist

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Environment

Internal and External

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6 P' G7 G+ Z8 H3 [" OSee Also
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For description of file types see table
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5 y, e1 S' \2 d" }8 R3 ]! O9 @int uc4560
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const char * fspec,
5 ~- T; {  I4 ~int ftype

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const char *	fspec	Input	File to check
int	ftype	Input	File type 5 d6 ]: f) G' g0 will check for files 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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1 n$ W2 W" O! e  y5 v" n& S8 D6 NUF_CFI_ask_file_exist (view source)
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Defined in: uf_cfi.h


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Test if a file exists.

; B. L4 |! @% r7 z7 M$ aNote: This function only works with files - not directories. To check if a
directory exists use uc4560 and pass a file type of 100.


: y* z: R8 F  _" v: A" [" NReturn
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0 - No error
Otherwise - Error Code
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4 y8 v1 f# I1 |) E" B# ?+ ~Environment
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/ R1 n% a4 z% z6 z) b; Y6 y( jInternal and External

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& [2 B5 m& S5 u! I1 UOriginally released in V16.0
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" x" I7 r1 S2 n  ORequired License(s)
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int UF_CFI_ask_file_exist
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8 x# C# ]" L5 `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 - E! b; i, d: F* i% {1 - file does not exist $ @& L( L6 V6 N7 I1 y" A6 N0 N ( B0 P" S: j0 M9 H