重构代码-随笔(1)
原始代码:
If txtSchool.Text = "" Then
MsgBox "请输入注册单位!", vbInformation
CheckRegText = False
txtSchool.SetFocus
Exit Function
End If1:len(txtSchool.Text) 要比 txtSchool.Text=""快的多。
2:为txtSchool.Text加上Trim
3:去除txtSchool的重复。
结果:
1:StringIsEmpty函数
'判断字符串的长度是否为空
Public Function StringIsEmpty(ByRef sString As String) As Boolean
sString = Trim(sString)
StringIsEmpty = Len(sString) = 0
End Function2:TextBoxIsEmpty函数
'文本框为空
Private Function TextBoxIsEmpty(oTextBox As TextBox, sMessage As String) AS Boolean
If StringIsEmpty(oTextBox.Text) Then
MsgBox sMessage, vbInformation
oTextBox.SetFocus
TextBoxIsEmpty = True
End If
End Function3:最终效果
If TextBoxIsEmpty(txtPerson, "请输入注册人!") Then Exit Function
If TextBoxIsEmpty(txtConn, "请输入联系电话!") Then Exit Function
If TextBoxIsEmpty(txtSchool, "请输入注册单位!") Then Exit Function
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