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• 评论了主题 defer和fmt.Println
  打印指针。 ``` func main() { var i = new(int) defer func(i *int) { fmt.Printf("3:%p,%v\n", i, *i) }(i) defer fmt.Printf("2:%p,%v\n", i, *i) *i++ fmt.Printf("1:%p,%v\n", i, *i) } //1:0x1400001c0a0,1 //2:0x1400001c0a0,0 //3:0x1400001c0a0,1 ```