AS

• 来源: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgAs
• 最后更新: 2017-01-01

---

声明语句中用于指定数据类型的关键字，或 Open 语句中用于指定文件句柄的关键字。

语法

symbolname As datatype

open ... As #filenumber
type ... As datatype

说明

As 用于声明变量、字段或参数的类型，也用于 Open 语句中确定文件句柄。As 还与 Type (Alias) 语法一起使用，类似于 C 语言中的 typedef 语句。

示例

start GeSHi

'' don't try to compile this code, the examples are unrelated
Declare Sub mySub (X As Integer, Y As Single, Z As String)
' ...

Dim X As Integer
' ...

Type myType
  X As Integer
  Y As Single
  Z As String
End Type
' ...

Type TheNewType As myType
' ...

Open "test" For Input As #1
' ...

end GeSHi

与 QB 的差异

• Type (Alias) 语法在 QB 中不受支持。

另请参阅

• Declare
• Dim
• Type
• Open

返回 目录