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ADO 读取 方法


❮ 流对象完整参考

Read 方法用于读取二进制流对象的整个流或指定数量的字节,并将结果数据作为变体返回。

注意:此方法仅用于二进制流对象,对于文本流对象,请使用 ReadText 方法。

语法

var=objStream.Read numbytes

参数 描述
numbytes 可选。要从文件读取的字节数,或 StreamReadEnum 值。默认为 adReadAll

如果您指定的字节数超过流中剩余的字节数,则仅返回剩余的字节。


StreamReadEnum 值

常量 描述
adReadAll -1 默认。从当前位置读取流中的所有字节,直到文件末尾。

注意:这是二进制流对象唯一有效的值


❮ 流对象完整参考
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