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#go 这个 go 写的并发素数筛太妙了 // A concurrent prime sievepackage main// Send the sequence 2, 3, 4, ... to channel 'ch'.func Generate(ch chan<- int) { for i := 2; ; i++ { ch <- i // Send 'i' to channel 'ch'. }}// Copy the values from channel 'in' to channel 'out'…