go map slice array channel 传参

package main

import (
"fmt"
//"net/http"
)

func modifyMap(s map[string]interface{}) {
s["a"]="a"
}
func modifyArray(a [5]int) {
a[2]=100
}
func modifySlice(b []int) {
b[0]=0
}
func modifyChannels(ch chan int) {
ch<-2;
}
func main() {
s := make(map[string]interface{})
s["a"]="b"
fmt.Println(s);
modifyMap(s);
fmt.Println(s);
a := [5]int{1,2,3,4,5}
fmt.Println(a);
modifyArray(a)
fmt.Println(a);
b := []int{1,2,3,4,5}
fmt.Println(b);
modifySlice(b);
fmt.Println(b);
ch :=make(chan int,10)
fmt.Println(len(ch));
modifyChannels(ch)
fmt.Println(len(ch));
}

map[a:b]
map[a:a]
[1 2 3 4 5]
[1 2 3 4 5]
[1 2 3 4 5]
[0 2 3 4 5]
0
1