Thanks for your reply.
I've tried before and it reported race.
But I don't understand why this code has race, and what's the possible bug?
Here's the output:
$ go run -race main.go
==================
WARNING: DATA RACE
Write at 0x00c000096000 by goroutine 7:
main.main.func3()
/Users/purewhite/go/src/xxx/main.go:26 +0x46
Previous read at 0x00c000096000 by goroutine 5:
sync/atomic.LoadInt32()
/usr/local/Cellar/go/1.12.6/libexec/src/runtime/race_amd64.s:206 +0xb
main.main.func1()
/Users/purewhite/go/src/xxx/main.go:13 +0x38
Goroutine 7 (running) created at:
main.main()
/Users/purewhite/go/src/xxx/main.go:23 +0x115
Goroutine 5 (running) created at:
main.main()
/Users/purewhite/go/src/xxx/main.go:11 +0xbd
==================
Found 1 data race(s)
exit status 66
在 2019年7月5日星期五 UTC+8下午6:48:11，Andrew Pillar写道：
>
> Have you tried building with the -race flag?
>
> go build - race
>
> This should help you figure out any data race conditions that may occur.
>
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