使用Ufun的CFI函数直接判断文件夹和文件等操作

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/ O" M9 U- T2 _" S) J4 o8 m+ K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。
+ H9 R* D' I% gUC4560 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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Defined in: uf_cfi.h
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Overview

( `3 D4 P2 f+ y& eChecks 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
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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* M3 Q0 B& S+ e; }6 {* H/ [Return

Return code:
< 0 = Error
= 0 = File Exists
= 1 = File Does Not Exist
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Environment

Internal and External

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See Also
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For description of file types see table


Required License(s)
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1 \) j5 Y# I; H1 Fint uc4560
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const char * fspec,
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const char *	fspec	Input	File to check
int	ftype	Input	File type / w0 D+ l* A0 V+ _- C) N0 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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& I0 G: ?4 P( S' g: v4 y) j1 CUF_CFI_ask_file_exist (view source)

% _% I1 j5 E; n0 r8 eDefined in: uf_cfi.h
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Overview

0 T# Y- {7 [2 d& p' ATest if a file exists.

Note: This function only works with files - not directories. To check if a
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: m8 V! a3 {# ~, P. j# nReturn
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# |, L3 \! m  [8 H$ e0 - No error
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Environment

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History
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% k$ Q& I" _$ c& p3 f! x1 ]6 UOriginally released in V16.0

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# y7 p5 `8 v! vint UF_CFI_ask_file_exist
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, {; r2 \2 m. V  M  pconst 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 : q* s) I' H' h& m. G6 R- K