- Foxtable(狐表) (http://foxtable.net/bbs/index.asp)
-- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2)
---- [求助]判断图片是否存在 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=120904)
-- 发布时间：2018/6/26 9:16:00
-- [求助]判断图片是否存在
Dim fl As String = "d:\\web\\" & e.path
If filesys.FileExists(fl)
Dim idx As Integer = fl.LastIndexOf(".")
Dim ext As String = fl.SubString(idx)
Select Case ext
Case ".jpg",".gif",".png",".bmp",".wmf",".js",".css" ,".html",".htm",".zip",".rar"
e.WriteFile(fl)
Return \'这里必须返回
End Select
End If
Select Case e.Path
Case "test.htm"
Dim wb As new WeUI
With wb.AddGallery("","gla1")
.AddImage("./images/001.jpg","./images/002.jpg","./images/003.jpg","./images/004.jpg")
End With
e.WriteString(wb.Build) \'生成网页
End Select
http://www.foxtable.com/mobilehelp/scr/0087.htm
以上案例，如果路径中的图片不存在时，会提示出错
我想先判断图片名称是否在路径中，如果存在则显示图片，如果不存在则不显示
请问怎么写？
-- 发布时间：2018/6/26 9:30:00
--
我测试这段代码，并没有报错。没有的图片，显示是空白的黑色背景。
-- 发布时间：2018/6/26 9:36:00
--
判断是否存在，参考代码
Select Case e.Path
Case "test.htm", ""
Dim wb As new WeUI
With wb.AddGallery("","gla1")
Dim ary()As String = {"/images/001hkjh.jpg","/images/jhk002.jpg","/images/001.jpg","/images/jhj004.jpg"}
Dim str As String = "c:\\web"
For Each s As String In ary
If filesys.FileExists(str & s)
.AddImage(s)
End If
Next
End With
e.WriteString(wb.Build) \'生成网页
End Select
-- 发布时间：2018/6/26 10:20:00
--
好，谢谢
