如何将嵌套结构中的字段设置为零值？

type NestedStruct struct {
    Field1 int
    Field2 string
}

type MainStruct struct {
    Nested NestedStruct
    OtherField bool
}

mainStruct := MainStruct{
    Nested: NestedStruct{
        Field1: 0, // 将Field1设置为零值
        Field2: "Value",
    },
    OtherField: true,
}

mainStruct := MainStruct{
    Nested: NestedStruct{
        Field1: 0,
        Field2: "", // 字符串类型的零值为""
    },
    OtherField: true,
}