go rob1 源码
golang rob1 代码
文件路径：/test/ken/rob1.go
// run
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Test general operation using a list implementation.
package main
type Item interface {
Print() string
}
type ListItem struct {
item Item
next *ListItem
}
type List struct {
head *ListItem
}
func (list *List) Init() {
list.head = nil
}
func (list *List) Insert(i Item) {
item := new(ListItem)
item.item = i
item.next = list.head
list.head = item
}
func (list *List) Print() string {
r := ""
i := list.head
for i != nil {
r += i.item.Print()
i = i.next
}
return r
}
// Something to put in a list
type Integer struct {
val int
}
func (this *Integer) Init(i int) *Integer {
this.val = i
return this
}
func (this *Integer) Print() string {
return string(this.val + '0')
}
func main() {
list := new(List)
list.Init()
for i := 0; i < 10; i = i + 1 {
integer := new(Integer)
integer.Init(i)
list.Insert(integer)
}
r := list.Print()
if r != "9876543210" {
panic(r)
}
}
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