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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                綁定方式 func(a 結構體名稱)方法名(){ } **不能為基礎類型綁定** ![](https://img.kancloud.cn/9e/59/9e59adbf27538abbf1dd78101e01dd9a_968x473.png) ``` package main import ( "encoding/json" "fmt" ) type user struct { ? ? Password string ? ? Nickname string } //值傳遞,無法實際改變值 func (u user) modifyPassword(newP string) bool { ? ? u.Password = newP ? ? fmt.Println("modifyPassword=>", u.Password) ? ? return true } //地址傳遞,可以實際改變值 func (u *user) modifyPasswordPtr(newP string) bool { ? ? u.Password = newP ? ? fmt.Println("modifyPasswordPtr=>", u.Password) ? ? return true } func main() { ? ? u := user{ ? ? ? ? Password: "123", ? ? ? ? Nickname: "123123", ? ? } ? ? data, err := json.Marshal(u) ? ? if err != nil { ? ? ? ? fmt.Println("json encodeing err", err) ? ? ? ? return ? ? } ? ? fmt.Println(string(data)) //JSON打印struct ? ? fmt.Println("更改前的值", u.Password) ? ? u.modifyPassword("abc") ? ? fmt.Println("1、更改后的值", u.Password) ? ? u.modifyPasswordPtr("def") (&u).modifyPasswordPtr("def")//上下等價,上面是編輯器底層優化后的寫法 ? ? fmt.Println("2、更改后的值", u.Password) } ``` ![](https://img.kancloud.cn/24/ca/24ca7c9566a6b9053f536994fc28b3a7_328x142.png)
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