string在vb中的用法
在VB中，string是一个数据类型，用来表示文本字符串。以下是一些常见的string的用法：
1. 变量声明和初始化：
  vb
  Dim myString As String
  myString = "Hello, World!"
 
2. 字符串连接：
  vb
  Dim firstName As String = "John"
  Dim lastName As String = "Doe"
  Dim fullName As String = firstName & " " & lastName
  '' fullName = "John Doe"
 
3. 字符串长度：
  vb
  Dim myString As String = "Hello, World!"
  Dim length As Integer = myString.Length
  '' length = 13
 
4. 字符串截取：
  vb
  Dim myString As String = "Hello, World!"
  Dim subString As String = myString.Substring(7, 5)
  '' subString = "World"
 
5. 字符串替换：
  vb
  Dim myString As String = "Hello, World!"
  Dim newString As String = myString.Replace("World", "John")
  '' newString = "Hello, John!"
 
6. 字符串比较：
array在vb什么意思啊
  vb
  Dim string1 As String = "Hello"
  Dim string2 As String = "World"
  Dim isEqual As Boolean = String.Equals(string1, string2)
  '' isEqual = False
 
以上是一些常见的string用法，还有其他一些字符串处理函数和方法可以根据需要使用。