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# DefDate Statement

如果未指定類型宣告字元或關鍵字，DefDate 陳述式將依字母範圍設定預設的變數類型。

### Syntax:

        {DefBool|DefCur|DefDate|DefDbl|DefErr|DefInt|DefLng|DefObj|DefStr|DefSng|DefVar} {char|char-char}[,...]

### Parameters:

char: Letter prefix that specifies default data type for variables.

char-char: Letter range prefixes that specify default data type for variables.

### Example:

        ' Prefix definitions for variable types:
        DefBool b
        DefCur c,l-m
        DefDate t
        DefDbl f
        DefErr e
        DefInt i-k,N
        DefLng x-z, D
        DefObj U, o-R
        DefSng w,a
        DefStr s
        DefVar V,g

      Sub ExampleDefDate
          tDate=Date REM tDate 是一個隱含的日期型變數
          Print VarType(tea), train, TypeName(timedate), IsDate(tick) ' Displays: 7 00:00:00 Date True
      End Sub