golang select 选择器的两种方案

golang select 选择器 常规模式: package main import ( "fmt" "strconv" ) func main() { var chs1 = make(chan int) var chs2 = make(chan float64) var chs3 = make(chan string) var ch4close = make(chan int) defer close(ch4close) go func(c chan int, ch4close chan int) { for i := 0; i < 5; i++ { c <- i } close(c) ch4close <- 1 }(chs1, ch4close) go func(c chan floa...阅读全文