在Golang中初始化嵌套的结构体定义

Question

How do you initialize the following struct?

type Sender struct {
    BankCode string
    Name     string
    Contact  struct {
        Name    string
        Phone   string
    }
}

I tried:

s := &Sender{
        BankCode: "BC",
        Name:     "NAME",
        Contact {
            Name: "NAME",
            Phone: "PHONE",
        },
    }

Didn't work:

mixture of field:value and value initializers
undefined: Contact

I tried:

s := &Sender{
        BankCode: "BC",
        Name:     "NAME",
        Contact: Contact {
            Name: "NAME",
            Phone: "PHONE",
        },
    }

Didn't work:

undefined: Contact

Answer 1

Your Contact is a field with anonymous struct type. As such, you have to repeat the type definition:

s := &Sender{
    BankCode: "BC",
    Name:     "NAME",
    Contact: struct {
        Name  string
        Phone string
    }{
        Name:  "NAME",
        Phone: "PHONE",
    },
}

But in most cases it's better to define a separate type as rob74 proposed.