27 lines
410 B
Go
27 lines
410 B
Go
package main
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import (
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"fmt"
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"sync"
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"sync/atomic"
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)
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func main() {
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var wg sync.WaitGroup
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var counter int64 // 注意必须是 int64/uint64 等特定类型
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for i := 0; i < 1000; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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for j := 0; j < 1000; j++ {
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atomic.AddInt64(&counter, 1)
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}
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}()
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}
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wg.Wait()
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fmt.Println("期待的结果:", 1000*1000)
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fmt.Println("实际结果:", counter)
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}
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