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。
, X( u! \$ e1 r* h0 l) d# Y- q# Q; rUC4560 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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7 F% }' U- G7 ?  juc4560 (view source)

Defined in: uf_cfi.h
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3 ?# B5 ]$ p. r" e+ EOverview
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! I$ s) l& n( B3 T3 TChecks 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
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$ [, e1 _# V; ~; M2 W/ i: BPassing an ftype of 0 will look for a file but does not work for a directory.
- j- O- v' b5 W7 e6 y- d6 bTo check for a directory the ftype must be set to 100.
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Return
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* H- H5 M8 b- \: W/ {( lReturn code:
< 0 = Error
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' b6 K+ }* ?3 c5 A= 1 = File Does Not Exist
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Environment

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See Also
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  b+ v8 i# ~* o' J" T  WFor description of file types see table
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2 Q  R0 A/ S9 z. q! kRequired License(s)

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int uc4560
(
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& E" z8 l' u1 n; ^) ]int ftype
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const char *	fspec	Input	File to check
int	ftype	Input	File type 0 will check for files 100 will check for directories

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
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Overview
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0 w7 e# C- A9 m5 N' P# n" ?Test if a file exists.

( E* L+ t; ?& z2 K1 L! I! ~' |Note: This function only works with files - not directories. To check if a
8 ]$ J" }# Z$ M0 F5 Adirectory exists use uc4560 and pass a file type of 100.

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' ~5 H0 J2 m& a5 j# T4 sReturn
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, W: F1 [: X# n$ b0 - No error
Otherwise - Error Code
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Environment
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Internal and External
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1 t  A7 Z  ?; m/ l" \) v# COriginally released in V16.0
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Required License(s)
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int UF_CFI_ask_file_exist
(
( |4 _7 h: B  l! Y( r+ u) Qconst char * file_spec,
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const char *	file_spec	Input	The file to check
int *	status	Output	File existence status. 3 U" q. {% Y9 @0 a. b, z5 e0 - file exists 2 v1 ~; [  u! x1 - file does not exist ( m& W) l# v- D6 |

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