将图像插入具有特定大小的数据库 [英] insert image to database with specific size

问题描述

如何将图片插入到具有特定大小的数据库中。例如70KB

以及如何检索它。谢谢

how can insert picture to database with specific size.for example 70KB
and how can retrieve it.thanks

推荐答案

如果你想要一个特定的字节大小，那么你唯一的选择就是以非压缩格式创建它，比如位图，具有固定的颜色深度，并将你想要的图像绘制到那里，根据需要调整大小。

至于保存和检索它，请参见此处：为什么我得到参数无效。我从数据库中读取图像时出现异常？ [ ^ ]

If you want a specific size in terms of bytes, then your only option is to create it in an uncompressed format such as a bitmap, with a fixed colour depth and draw the image you want into that, resizing as necessary.
As far as saving and retrieving it, see here: Why do I get a "Parameter is not valid." exception when I read an image from my database?[^]

也许这可以帮到你



www.youtube.com/watch?v=mxjeE9no06w



www.youtube.com/watch?v=_9J7C2u_jIY



：）

maybe this may help you

www.youtube.com/watch?v=mxjeE9no06w

www.youtube.com/watch?v=_9J7C2u_jIY‎

:)

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