QtConcurrent namespace provides high-level APIs that make it possible to write multi-threaded programs without using low-level threading primitives.
见 Qt Concurrent chapter in the threading 文档编制。
This enum specifies the order of which results from the map or filter function are passed to the reduce function.
| 常量 | 描述 |
|---|---|
| QtConcurrent.UnorderedReduce | Reduction is done in an arbitrary order. |
| QtConcurrent.OrderedReduce | Reduction is done in the order of the original sequence. |
| QtConcurrent.SequentialReduce | Reduction is done sequentially: only one thread will enter the reduce function at a time. (Parallel reduction might be supported in a future version of Qt Concurrent.) |
