如何使通道从goroutine接收多个返回值

使用两个值的字段定义自定义类型，然后创建

chan

编辑：我还添加了一个使用多个通道而不是自定义类型的示例（在底部）。我不确定哪个更惯用。

例如：

type Result struct {    Field1 string    Field2 int}

然后

ch := make(chan Result)

使用自定义类型的频道（Playground）的示例：

package mainimport (    "fmt"    "strings")type Result struct {    allCaps string    length  int}func capsAndLen(words []string, c chan Result) {    defer close(c)    for _, word := range words {        res := new(Result)        res.allCaps = strings.ToUpper(word)        res.length = len(word)        c <- *res}}func main() {    words := []string{"lorem", "ipsum", "dolor", "sit", "amet"}    c := make(chan Result)    go capsAndLen(words, c)    for res := range c {        fmt.Println(res.allCaps, ",", res.length)    }}

产生：

LOREM，5
IPSUM，5
颜色，5
SIT，3
AMET，4

编辑：使用多个通道而不是自定义类型来产生相同输出（Playground）的示例：

package mainimport (    "fmt"    "strings")func capsAndLen(words []string, cs chan string, ci chan int) {    defer close(cs)    defer close(ci)    for _, word := range words {        cs <- strings.ToUpper(word)        ci <- len(word)    }}func main() {    words := []string{"lorem", "ipsum", "dolor", "sit", "amet"}    cs := make(chan string)    ci := make(chan int)    go capsAndLen(words, cs, ci)    for allCaps := range cs {        length := <-ci        fmt.Println(allCaps, ",", length)    }}