// delcalration
var scores [10]int
//
socres := [10]int{1,3,}

// 迭代遍历
for idx, val := range scores {

}

// delcaration
sc := []int{1,2}
// cap is 10, len is 0
sc := make([]int, 10)
// cap is 10, len is 4
sc := make([]int, 4, 10) 

// map[key_type]value_type
m := map[string]int

// declaration
type Person struct {
    Name string
    Age int
}

// 赋值
zhangsan := Person {
    Name: "zs",
    Age: 22, // note this
}

lisi := Person{}
lisi.Name = "ls"
lisi.Age = 14

wangwu := Person{"ww", 26}

type Person struct {
    Name string
    Age int
}
// 该方法的调用者为Person类型的变量
func (p *Person) PrintPerson() {
    // print relevant information of person p
}

p1 := new(Person)
// 与下面等价
p1 := &Person{}   

type Person struct {
    Name string
}

func (p *Person)Introduce() {
    println("I am: " + p.Name)
}

type Worker struct {
    *Person
    JobType string
}

w := &Worker {
    Person: &Person{"zhangsan"},
    JobType: "programmer",
}