1.5 常量、变量、表达式
//声明布尔型变量
//var isStupid bool = true//真
//var isStupid bool = false//假
var isStupid bool
/*声明数值型变量*/
//var age int = 60
var age int
//var rmb float32 = 0.5
var rmb float32
//复数
//var vector complex64 = 3+4i
var vector complex64
//声明字符串变量
//var name string = "张全蛋"
var name string
/*声明复合型变量*/
//10长度的整型数组
//var ages [10]int = [10]int{1,2,3,4,5,6,7,8,9,0}
var ages [10]int
//可变长的整型切片
//var heights []int = []int{1,2,3}
var heights []int
//映射（键1：值1，键2：值2...）
//var kpi map[string]int = map[string]int{"代码量":10000,"注释量":3000}
var kpi map[string]int
var weight int = 300
//整型指针，weightPointer存放的不是300，而是放置300的内存地址
//var weightPointer *int = &weight
var weightPointer *int
//定义公有的（首字母大写，否则包内私有）接口Animal
//Go语言是强类型语言，但是空接口interface{}可以代指任何类型
var Animal interface{}
//结构体
//var person struct {
// name string
// age int
// rmb float32
//}
var person struct{}
//声明函数变量
//var eat func() = func() {
// ("我是个吃货")
//}
var eat func(a int,b float64)bool
func main() {
/*
格式化打印
%T 类型占位符
%v 值占位符
*/
("【是否愚蠢】的类型是%T，值是%v\n",isStupid,isStupid)
("【年龄】的类型是%T，值是%v\n",age,age)
("【资产】的类型是%T，值是%v\n",rmb,rmb)
("【向量】的类型是%T，值是%v\n",vector,vector)
("【姓名】的类型是%T，值是%v\n",name,name)
("【年龄们】的类型是%T，值是%v\n",ages,ages)
("【身高们】的类型是%T，值是%v\n",heights,heights)
("【KPI】的类型是%T，值是%v\n", kpi, kpi)
("【存体重的地址】的类型是%T，值是%v\n",weightPointer,weightPointer)
("【人】的类型是%T，值是%v\n", person, person)
("【饕餮】的类型是%T，值是%v\n",eat,eat)
}