使用Ufun的CFI函数直接判断文件夹和文件等操作

admin

. a6 s$ c8 z6 n; ^9 @
% u' l, N# F, t! }4 e+ o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。
0 ^) U/ j$ T3 }1 l8 A5 M7 h2 v  lUC4560 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。

+ i$ J1 m  v( y6 G: y1 x: K
$ r- o$ c# \$ A6 E* i% D
" f: v) G- e% J2 v
7 r2 t5 ^$ l0 E+ q0 r* Quc4560[size=13.3333px] [size=13.3333px](view source)
[size=13.3333px]
+ A# W# s: N6 ^% K[size=13.3333px]Defined in: uf_cfi.h

0 B; ]6 }2 }. e( }1 P
9 L0 l6 l) r& \( iOverview

Checks whether the specified file of the given type exists.

! a, }5 K4 x( d3 Y' eNOTE: Mixed or upper case file names may not be found if the
environment variable UGII_OPTION = LOWER is set.

$ K0 E& B6 D9 M* vPassing an ftype of 0 will look for a file but does not work for a directory.
8 @  G: f+ H% f& L+ [. ]/ uTo check for a directory the ftype must be set to 100.

3 P( {6 X% q, A7 x( L7 g( D" S6 J
' h+ M4 ^3 Q; I5 D/ fReturn
$ n7 K, i( y6 @) r& L; C
Return code:
< 0 = Error
= 0 = File Exists
$ p9 T4 \2 U6 T- I= 1 = File Does Not Exist


Environment
( w! c5 L4 W3 w
8 p) k+ K. Y! f) ^; K8 ]* BInternal and External


See Also

For description of file types see table


Required License(s)
% f( s4 C7 L0 ]8 R8 g, z
gateway
; ]/ y6 Y: ~% }% J/ C& U/ H6 K
& ~& C1 B' Y* c# k
[size=13.3333px]
$ ]; P9 c! t  q% S7 V+ A3 y7 j0 N, Pint uc4560
/ f( e0 U# R! }% |! f: v, [(
const char * fspec,
( L, J; Y3 u+ h' L( a2 {int ftype

)
, T# i# i8 W' |9 Q4 \+ p* U% ~% W3 C
6 Z6 a! [2 \& m0 P5 o

const char *	fspec	Input	File to check
int	ftype	Input	File type 0 will check for files 100 will check for directories

% e. c3 N+ x% i6 C! V, `

查找文件也可以通过[size=18.6667px]UF_CFI_ask_file_exist
2 C# N# j/ ]) C7 @# @
UF_CFI_ask_file_exist[size=13.3333px] [size=13.3333px](view source)
  }7 h/ |, I* D. q, w( O[size=13.3333px]
) n+ x4 x# Y  P7 c[size=13.3333px]Defined in: uf_cfi.h
: n1 J7 B$ _0 f& [3 G; n3 m# s- K

Overview

Test 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.


Return

0 - No error
Otherwise - Error Code
9 _5 C" d2 v6 o, b5 G

Environment

Internal and External
% R% |$ h2 R2 E9 ~) V! W

History
8 B* P; I; ?/ j% |: C; ]2 V
+ f; z9 Y1 F" G1 ^& }3 eOriginally released in V16.0
, W, i" {; i0 c$ t7 @: r8 c& x
) S( z0 v& C" r- I+ ], S
Required License(s)
2 C1 g3 Y0 u& J% h2 _* M
" S. @. n% O9 @; q5 s* xgateway
0 W' Y7 S2 A. r+ Q* u+ S3 M
' U" s# v/ ~, N0 S4 F
1 m+ J( Z/ N6 ?+ u2 G3 c. y[size=13.3333px]
1 S. W" ], W% Vint UF_CFI_ask_file_exist
9 x) [% B" {4 a; g; C" W3 q: A& r(
# ?- C- \2 W1 o/ C' iconst char * file_spec,
0 N9 ]: J& N5 S9 `, l$ d& Q* s5 rint * status
3 B9 K) {- S: @; Q" `" h/ E
)

const char *	file_spec	Input	The file to check
int *	status	Output	File existence status. 0 - file exists 1 - file does not exist ' r; w* r; q2 c