What is the execution order of Go routines?

In the Go language, a Goroutine is a lightweight thread that is scheduled and managed by the Go language’s scheduler. The order of execution of Goroutines is determined by the scheduler, which uses specific scheduling policies to decide the order in which Goroutines are executed.

Typically, the execution order of coroutines is unpredictable. The scheduler will determine the scheduling based on factors such as the current system load, the priority of the coroutines, and their blocking status. The scheduler will switch between executing different coroutines in different time slices to achieve maximum concurrency.

As the execution order of coroutines is not guaranteed, when writing concurrent programs, one should not rely on the order of coroutine execution to control the logic. If it is necessary to ensure the execution order of specific coroutines, sync primitives provided by Go language (such as channels, mutexes, etc.) can be used for synchronization and communication between coroutines.