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* 添加部分10.1内容
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@@ -136,6 +136,58 @@ type Point struct { x, y int }
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类型strcut1在定义它的包pack1中必须是唯一的,它的完全类型名是:`pack1.struct1`。
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下面的例子[Listing 10.2—person.go](examples/person.go)显示了一个结构体Person,一个方法,方法有一个类型为*Person的参数(因此对象本身是可以被改变的),以及三种不同的调用这个方法的方式:
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```go
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package main
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import (
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"fmt"
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"strings"
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)
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type Person struct {
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firstName string
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lastName string
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}
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func upPerson(p *Person) {
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p.firstName = strings.ToUpper(p.firstName)
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p.lastName = strings.ToUpper(p.lastName)
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}
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func main() {
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// 1-struct as a value type:
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var pers1 Person
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pers1.firstName = "Chris"
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pers1.lastName = "Woodward"
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upPerson(&pers1)
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fmt.Printf("The name of the person is %s %s\n", pers1.firstName, pers1.lastName)
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// 2—struct as a pointer:
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pers2 := new(Person)
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pers2.firstName = "Chris"
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pers2.lastName = "Woodward"
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(*pers2).lastName = "Woodward" // 这是合法的
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upPerson(pers2)
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fmt.Printf("The name of the person is %s %s\n", pers2.firstName, pers2.lastName)
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// 3—struct as a literal:
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pers3 := &Person{“Chris”,“Woodward”}
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upPerson(pers3)
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fmt.Printf(“The name of the person is %s %s\n”, pers3.firstName, pers3.lastName)
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}
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```
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第2种情况
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输出:
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The name of the person is CHRIS WOODWARD
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The name of the person is CHRIS WOODWARD
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The name of the person is CHRIS WOODWARD
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**练习9.2**
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