Question

vb怎么获得txt文件中的行数？怎么实现？

Answer 1

如果文本很大，那用for、do就太慢太慢了，我给大家一个快速查询的方法：
Dim Oc,Fs,S,X
Set Fs = Oc.OpenTextFile("C:\Test.Txt", 1)'用FSO打开TXT文件
S = Fs.ReadAll'获取全文
Fs.Close'关闭文件
X = (Len(S) - Len(Replace(S, vbCrLf, ""))) / Len(vbCrLf) + 1 '统计总行数:用字符串替换法得到一共多少个回车，然后再加一就得到总行数了

Answer 2

添加 Text1, Multiline的属性要设为True

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Const EM_GETLINECOUNT = &HBA
Dim fname$, aa$, jj&
Private Sub Form_Load()
fname = "c:\test.txt" '改为你自己的文件名与路径(app.path)
Open fname For Input As #1
Text1.Text = ""
While Not EOF(1)
Line Input #1, aa
Text1.Text = Text1.Text & aa & vbCrLf
Wend
jj = SendMessage(Text1.hwnd, EM_GETLINECOUNT, 1, 0)
MsgBox jj
End Sub

Answer 3

dim TT() as String
dim ss as Integer
open txt for input as #1
Do While Not EOF(1)
Input #1, TT(ss)
ss=ss+1
Loop
Close 1#
txt 是txt文件名 ss 就是行数

Answer 4

对的 用ubound(split（文本内容，vbcrlf）)+1就是行数

Answer 5

先读取，然后用分割函数分割回车符，之后判断数组长度