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。
& m& B' ^) ^# {- \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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9 f' h8 O2 e# y' {uc4560 (view source)
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Defined in: uf_cfi.h

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Checks whether the specified file of the given type exists.

- I% ?: w) y" h, h, y" WNOTE: Mixed or upper case file names may not be found if the
6 s# S- U; Q' S* M; M4 }/ P  s4 zenvironment variable UGII_OPTION = LOWER is set.

$ K; s! S; z" l! v0 [Passing an ftype of 0 will look for a file but does not work for a directory.
5 b3 Y+ S+ a* H1 ~7 C( XTo check for a directory the ftype must be set to 100.

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- r  V8 ]/ C& o" |$ e" M- |% tReturn

- s5 |5 @+ c0 n1 L) [3 d) PReturn code:
< 0 = Error
0 G% n- O/ X/ L1 [, I% i= 0 = File Exists
= 1 = File Does Not Exist

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  Q" X2 p5 K7 |: Y/ qEnvironment

8 k' I" o* Q9 B; J, xInternal and External

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See Also
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0 Q* _) i0 C( G# p/ f( ?For description of file types see table
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Required License(s)
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: Y! E) N$ z$ _* m/ }6 j' v# kint uc4560
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0 H) {5 r$ D: N4 Gconst char * fspec,
- V5 c$ ?" o2 h/ F  H4 T% d: W: j$ aint ftype

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const char *	fspec	Input	File to check
int	ftype	Input	File type / R4 ^, `$ K% }4 y1 p0 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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UF_CFI_ask_file_exist (view source)

Defined in: uf_cfi.h


Overview

: c7 H, M" o2 h1 A9 NTest if a file exists.

Note: This function only works with files - not directories. To check if a
directory exists use uc4560 and pass a file type of 100.
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Return

% u! e8 ^- x2 n9 W+ {. m9 y# {9 e7 B; u0 - No error
Otherwise - Error Code


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1 F  z5 K7 c& r  p7 MInternal and External
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. ~5 ^* A$ A2 V) r% nOriginally released in V16.0


Required License(s)

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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 O; X1 G, b, i, L7 J5 ?5 o! U3 z0 - file exists 1 - file does not exist . s8 O  ?( y8 p/ Q5 Y

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