关于FileWrite与FileClose的问题,初学pb 还请多指教

[skywolfY]

string filename="datalog.ini"
if not FileExists(filename) =true then
integer li_filenum
li_filenum=fileopen("datalog.ini",&
LineMode!,Write!,LockWrite!,Append!)
if li_filenum = -1 then
MessageBox("系统提示","打开文件不成功")
end if
FileWrite(li_filenum,"aaaaaaaaa")
Fileclose(li_filenum)
end if
以上代码可以成功执行，如改为
....

if li_filenum = -1 then
MessageBox("系统提示","打开文件不成功")
end if
integer li_wr=FileWrite(li_filenum,"aaaaaaaaa")
if li_wr = -1 then
MessageBox("系统提示","写入失败")
end if
integer li_err=Fileclose(li_filenum)
if li_err = -1 then
MessageBox("系统提示","关闭失败")
end if
结果写入出错，关闭出错？为什么？
帮助上写着
FileWrite()
Integer. Returns the number of characters or bytes written if it succeeds and it returns -1 if an error occurs. If any argument's value is NULL, FileWrite returns NULL.
FileClose()
Integer. Returns 1 if it succeeds and -1 if an error occurs. If file# is NULL, FileClose returns NULL.
呀？
不明白!

[warchild]

integer li_wr = FileWrite(li_filenum,"aaaaaaaaa")
integer li_err = Fileclose(li_filenum)
这函数不能用于初试始化时

integer li_wr, li_err
li_wr=FileWrite(li_filenum,"aaaaaaaaa")
if ....
li_err=Fileclose(li_filenum)
if ....
ok!!

[byfq]

同意上面所说，不过，pb中一般使用下面两个函数读写ini文件，

ProfileString("C:\PROFILE.INI", "Employee", &

"Name", "None")

SetProfileString("C:\PROFILE.INI", &

"Position", "Title", "MGR")

[sincerity]

同意：）

[skywolfY]

哈哈哈，这么回事，多谢朋友了，嘻

[skywolfY]

回晚了呀，嘻，我是的文件名是乱写的，应该是log，
要动态增加的，不过不是谢谢各位帮助了，结帐了，^o^