request.body. By default uploaded files are fully buffered in memory; if you need to handle files that are too large to comfortably keep in memory see the stream_request_body class decorator. In the demos instance (even indirectly) before the fork. Second, it is difficult to do zero-downtime updates in this model. Finally, since all the processes share the same port it is more difficult to monitor them individually string or an iterator of byte strings. The latter is preferred for large files as it helps reduce memory fragmentation. Added in version 3.1. classmethod get_content_version(abspath: str) → str Returns

request.body. By default uploaded files are fully buffered in memory; if you need to handle files that are too large to comfortably keep in memory see the stream_request_body class decorator.In the demos directory instance (even indirectly) before the fork. Second, it is difficult to do zero-downtime updates in this model. Finally, since all the processes share the same port it is more difficult to monitor them individually string or an iterator of byte strings. The latter is preferred for large files as it helps reduce memory fragmentation. Added in version 3.1. classmethod get_content_version(abspath: str [https://docs

the stack）。栈中的所有数据都必须 占用已知且固定的大小。在编译时大小未知或大小可能变化的数据，要改为存储在堆 上。 堆是缺乏组织的：当向堆放入数据时，你要请求一定大小的空间。内存分配器 （memory allocator）在堆的某处找到一块足够大的空位，把它标记为已使用，并返 回一个表示该位置地址的 指针（pointer）。这个过程称作 在堆上分配内存 （allocating on the heap），有时简称为 且它的大小还可能随着程序运行而改变。 对于 String 类型，为了支持一个可变，可增长的文本片段，需要在堆上分配一块在编译时未 知大小的内存来存放内容。这意味着： • 必须在运行时向内存分配器（memory allocator）请求内存。 • 需要一个当我们处理完 String 时将内存返回给分配器的方法。 第一部分由我们完成：当调用 String::from 时，它的实现 (implementation) according to the RYB color model. pub enum PrimaryColor { Red, Yellow, Blue, } /// The secondary colors according to the RYB color model. pub enum SecondaryColor