GO语言学习笔记(二)

package main

import (
	"fmt"
)

type Integer int

func (a Integer) Less(b Integer) bool {
	return a < b
}

func main() {
	var a Integer = 1
	if a.Less(2) {
		fmt.Println("Less true.")
	}
}

结果输出：Less true.

package main

import (
	"fmt"
)

func modifyslice(array []int) {
	slice1 := array[1:2]
	fmt.Println(slice1)
	slice1[0] = 4
	fmt.Println(slice1)
	fmt.Println(array)
}

func main() {
	modifyslice([]int{1,2,3})
	
}

结果输出：
[2]
[4]
[1 4 3]

var file1 Writer = ... 
if file5, ok := file1.(two.IStream); ok { 
 ... 
}