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# Option Compatible 语句

Option Compatible extends LibreOffice Basic compiler and runtime, allowing supplemental language constructs to Basic.

此语句必须添加到模块中的可执行程序代码之前。

The function CompatibilityMode() controls runtime mode and affects all code executed after setting or resetting the mode.

在下列情况下, 此选项可能会产生影响或有所帮助:

- Allow special characters as identifiers. all characters that are defined as letter in the Latin-1 (ISO 8859-1) character set, are accepted as part of identifiers.

- Create VBA constants including non-printable characters.

- 过程支持 Private/Public 关键字。

- 对对象强制 Set 语句。

- 过程中可选参数的默认值。

- 存在多个可选参数时的命名参数。

- LibreOffice Basic 库的预加载

编码类模块时必须使用 Option Compatible。

### 语法:

Option Compatible

### 示例:

### Special characters as identifiers

            Option Compatible
            ' With this option the code works, otherwise it causes a compiling error
            Sub Main
                ä = 10
                print ä
            End Sub

Statement Option VBAsupport 1 sets Option Compatible statement automatically.

相关主题

Rem 语句

CompatibilityMode() Function

Option Base 语句

Option Explicit 语句

Option VBASupport 语句

Option ClassModule 语句

《使用过程和函数》中利用 CompatibilityMode() 函数修改变量作用域。

Refer to Identifying the Operating System and Getting Session Information for class module examples, or Access2Base shared Basic library for other class examples making use of Option Compatible compiler mode.