使用Ufun的CFI函数直接判断文件夹和文件等操作

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2 a% V5 u; D* U4 V$ r7 G7 M( Q7 C8 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。
. i' X5 R& j/ pUC4560 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)

# L: e" X0 z7 @+ B9 w; FDefined in: uf_cfi.h

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Overview

+ R4 l9 }) k& p3 x; }6 @- s7 c7 V. NChecks whether the specified file of the given type exists.

9 W2 @7 O" ?/ q. Y' N4 jNOTE: Mixed or upper case file names may not be found if the
1 h3 R) y/ v2 V+ U( m7 L2 _environment variable UGII_OPTION = LOWER is set.
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  T# W5 I4 w2 y- u/ s+ ~+ H7 H& o; p3 uPassing an ftype of 0 will look for a file but does not work for a directory.
1 w" x8 k% Q: ~2 P& ?% gTo check for a directory the ftype must be set to 100.
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" K; E) f' H: H" TReturn
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Return code:
< 0 = Error
= 0 = File Exists
= 1 = File Does Not Exist
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Environment
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/ C! ?. o4 ~0 f( ]  XInternal and External
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: J' E% _2 F6 K( j8 W" oSee Also

4 l$ o- y& A% ?7 @For description of file types see table


" z4 p# Y8 Y: U( p/ GRequired License(s)
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int uc4560
(
- I; O* y# r. |# }const char * fspec,
int ftype

)

const char *	fspec	Input	File to check
int	ftype	Input	File type + ]% y* O' {' t, S3 `8 [/ G) n0 will check for files , _, f; D' h# U6 I100 will check for directories

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查找文件也可以通过UF_CFI_ask_file_exist

UF_CFI_ask_file_exist (view source)
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Defined in: uf_cfi.h
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Overview
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Test if a file exists.

7 F0 ~/ G( l5 i* b* c2 J; W- x+ W9 [Note: This function only works with files - not directories. To check if a
directory exists use uc4560 and pass a file type of 100.


Return
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( S5 P, ^  P' Q1 a8 I( B5 t7 j0 - No error
Otherwise - Error Code


9 d/ }' p3 C/ f( i7 LEnvironment
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Internal and External
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History

Originally released in V16.0
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% U( n( |* o7 @/ k- Mint UF_CFI_ask_file_exist
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const char * file_spec,
int * status
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)
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const char *	file_spec	Input	The file to check
int *	status	Output	File existence status. 0 - file exists   S, ]% b8 G; h' p/ P4 p0 S1 - file does not exist * g# O. T& B% w- ^' \ 6 J: T' D5 r) Y3 [, h. M* Q

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