package main import "fmt" //声明变量number为int数据,此时默认复制为0 var number int // 定义多个变量 var( name string age int sex bool ) func main(){ //直接声明变量number赋值为2 number := 2 fmt.Println(number); name = "Neo" fmt.Println(name); url := "http://www.netkiller.cn" fmt.Println(url); }
//声明常量 const url const url = "http://www.netkiller.cn" const nickname string = "netkiller" const Monday, Tuesday, Wednesday, Thursday, Friday, Saturday = 1, 2, 3, 4, 5, 6 const ( New, Pending, Done = 1, 2, 3 Canceled, Failed, Scuess = 4, 5, 6 ) // 生成枚举值时候可以使用关键字:itoa, 值将依次递增 const ( Sunday = iota // 0 Monday // 1 Tuesday // 2 Wednesday // 3 Thursday // 4 Friday // 5 Saturday // 6 )