admin 管理员组

文章数量: 887021


2023年12月17日发(作者:主函数定义的变量子函数能用吗)

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 =

'' length = 13

4. 字符串截取:

vb

Dim myString As String = "Hello, World!"

Dim subString As String = ing(7, 5)

'' subString = "World"

5. 字符串替换:

vb

Dim myString As String = "Hello, World!"

Dim newString As String = e("World", "John")

'' newString = "Hello, John!"

6. 字符串比较:

vb

Dim string1 As String = "Hello"

Dim string2 As String = "World"

Dim isEqual As Boolean = (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。


本文标签: 字符串 变量 定义 方法 表示