go语言练习
1 // main 2 package main 3 4 import ( 5 "fmt" 6 "runtime" 7 "sync" 8 ) 9 10 func main() { 11 fmt.Println("Hello World!") 12 runtime.GOMAXPROCS(1) 13 var wg sync.WaitGroup 14 wg.Add(2) 15 i := 999 16 fmt.Println("Start Goroutines") 17 18 go func() { 19 defer wg.Done() 20 //共享变量 i wg 21 fmt.Println(i) 22 for count := 0; count < 3; count++ { 23 for char := 'a'; char < 'a'+26; char++ { 24 fmt.Printf("%c ", char) 25 } 26 } 27 }() 28 29 go func() { 30 defer wg.Done() 31 fmt.Println(i) 32 for count := 0; count < 3; count++ { 33 for char := 'A'; char < 'A'+26; char++ { 34 fmt.Printf("%c ", char) 35 }