使用Ufun的CFI函数直接判断文件夹和文件等操作

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6 R% ~0 _; l; u7 {) P' T6 s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。
! o3 T. c( F; V. a6 vUC4560 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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! j) j( u* q/ _# s7 B; O* kuc4560 (view source)

Defined in: uf_cfi.h


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" ?: y' s* n6 q6 u2 T0 A6 _Checks whether the specified file of the given type exists.

NOTE: Mixed or upper case file names may not be found if the
) g8 p* v) a% ]5 j3 m/ h# ]3 Genvironment variable UGII_OPTION = LOWER is set.
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3 R; g, B/ I! \8 Q+ t( HPassing 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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8 a2 {8 c1 _3 b- }Return
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Return code:
/ G# v1 T1 |/ h5 x9 q- H0 x< 0 = Error
= 0 = File Exists
= 1 = File Does Not Exist
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Internal and External
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See Also

For description of file types see table
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. _1 r3 z( v' P% U- E, ~) X  kint uc4560
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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

UF_CFI_ask_file_exist (view source)

Defined in: uf_cfi.h
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# k- w6 j, c% R) H$ \1 TTest if a file exists.
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0 r. e9 X1 N0 _" n, d+ P& `+ RNote: This function only works with files - not directories. To check if a
directory exists use uc4560 and pass a file type of 100.


! ?' b' O! ?3 J2 @3 T: ]: o# ]Return
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. ?, |/ [1 l3 A: m. n0 - No error
- d# \% f- j7 V3 IOtherwise - Error Code


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Internal and External


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- L* M: a/ Q* l9 d4 b8 KOriginally released in V16.0
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int UF_CFI_ask_file_exist
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  P% u5 @% C+ u. h  iconst char * file_spec,
! |3 P5 L% E# A0 k6 W) b+ b# P0 @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 " e' r8 P3 `3 J, _$ b! d $ x$ {* G0 G9 C+ D! g