在VB中,字符串(String)函数可以用于处理和操作字符串数据。以下是一些常见的String函数用法:
示例:
Dim str As String = "Hello World"
Dim length As Integer = Len(str)
' length的值为11
示例:
Dim str As String = "Hello World"
Dim subStr As String = Mid(str, 7, 5)
' subStr的值为 "World"
示例:
Dim str As String = "Hello World"
Dim subStr As String = Left(str, 5)
' subStr的值为 "Hello"
示例:
Dim str As String = "Hello World"
Dim subStr As String = Right(str, 5)
' subStr的值为 "World"
示例:
Dim str As String = "Hello World"
Dim position As Integer = InStr(str, "o")
' position的值为 5
示例:
Dim str As String = "Hello World"
Dim newStr As String = Replace(str, "World", "VB")
' newStr的值为 "Hello VB"
这些只是String函数的一些常见用法,还有其他更多的用法可以根据具体需求进行使用。
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