使用Ufun的CFI函数直接判断文件夹和文件等操作

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+ ?1 a7 e0 D- F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。
. B( s: A$ d0 L: {( YUC4560 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。




- u. Q9 {6 k7 P( k' N+ {uc4560 (view source)
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Defined in: uf_cfi.h
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! _6 J2 `+ g) R8 G' t( ^Checks whether the specified file of the given type exists.

; A3 I, H/ O- G$ }/ \, \NOTE: 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.
5 ?4 t- D. l9 T2 C* hTo check for a directory the ftype must be set to 100.
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- ~1 z3 c+ I- Z0 W. {6 W9 V7 dReturn
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5 h* v+ p4 K7 i7 f( IReturn code:
1 L2 t5 t# ]# @8 e2 E< 0 = Error
  U0 q& b- @" y5 _! e= 0 = File Exists
" c- w6 ^0 ]: [/ D) M= 1 = File Does Not Exist


Environment

: B3 F& a" M8 Y" CInternal and External
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See Also

* j8 V' G8 C1 }+ V5 `- }9 MFor description of file types see table
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Required License(s)

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int uc4560
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# P. M% ]5 v9 r! B+ i  Oconst char * fspec,
int ftype

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const char *	fspec	Input	File to check
int	ftype	Input	File type , p5 o$ D2 E9 ?4 b. E, l- _/ O# a0 will check for files + }( b. r5 g$ F: E, v8 C100 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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; t; J5 ?# a* @. C5 V2 j2 w$ a0 tDefined in: uf_cfi.h
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Overview

& H) q+ Q6 e, ^Test if a file exists.
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+ e4 f7 h1 ?! ~0 m$ O' \; fNote: This function only works with files - not directories. To check if a
8 `. j. K( c- P) u$ R6 `directory exists use uc4560 and pass a file type of 100.
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2 q! Y, y- x: aReturn
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( X; r  }( p3 R2 k# z) A0 - No error
2 H; L, y$ C7 _* H6 P% v% pOtherwise - Error Code
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5 ?5 m) L5 N5 x! cEnvironment
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! H; g+ S6 A4 z4 Z2 ?! `Internal and External
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Originally released in V16.0


Required License(s)

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int UF_CFI_ask_file_exist
(
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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 ; l7 S: L: G* n0 l* ]  v- ?+ ~) D1 - file does not exist ! T8 {! d! [! `& E2 ` # N5 p% R8 }  f  i# u# U* L9 f+ j