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。
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