Files
the-way-to-go_ZH_CN/eBook/examples/chapter_10/struct_conversions.go

26 lines
534 B
Go

// struct_conversions.go
package main
import (
"fmt"
)
type number struct {
f float32
}
type nr number // alias type
func main() {
a := number{5.0}
b := nr{5.0}
// var i float32 = b // compile-error: cannot use b (type nr) as type float32 in assignment
// var i = float32(b) // compile-error: cannot convert b (type nr) to type float32
// var c number = b // compile-error: cannot use b (type nr) as type number in assignment
// needs a conversion:
var c = number(b)
fmt.Println(a, b, c)
}
// output: {5} {5} {5}