Go by Example ไธญๆ็: ๆนๆณ
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Go ๆฏๆไธบ็ปๆไฝ็ฑปๅๅฎไนๆนๆณ(methods) ใ |
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package main |
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import "fmt" |
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type rect struct { width, height int } |
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่ฟ้็ |
func (r *rect) area() int { return r.width * r.height } |
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ๅฏไปฅไธบๅผ็ฑปๅๆ่ ๆ้็ฑปๅ็ๆฅๆถ่ ๅฎไนๆนๆณใ ่ฟๆฏไธไธชๅผ็ฑปๅๆฅๆถ่ ็ไพๅญใ |
func (r rect) perim() int { return 2*r.width + 2*r.height } |
func main() { r := rect{width: 10, height: 5} |
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่ฟ้ๆไปฌ่ฐ็จไธ้ขไธบ็ปๆไฝๅฎไน็ไธคไธชๆนๆณใ |
fmt.Println("area: ", r.area()) fmt.Println("perim:", r.perim()) |
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่ฐ็จๆนๆณๆถ๏ผGo ไผ่ชๅจๅค็ๅผๅๆ้ไน้ด็่ฝฌๆขใ ๆณ่ฆ้ฟๅ ๅจ่ฐ็จๆนๆณๆถไบง็ไธไธชๆท่ด๏ผๆ่ ๆณ่ฎฉๆนๆณๅฏไปฅไฟฎๆนๆฅๅ็ปๆไฝ็ๅผ๏ผ ไฝ ้ฝๅฏไปฅไฝฟ็จๆ้ๆฅ่ฐ็จๆนๆณใ |
rp := &r fmt.Println("area: ", rp.area()) fmt.Println("perim:", rp.perim()) } |
$ go run methods.go area: 50 perim: 30 area: 50 perim: 30 |
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ๆฅไธๆฅ๏ผๆไปฌๅฐๅญฆไน Go ๅฏนๆนๆณ้่ฟ่กๅฝๅๅๅ็ป็ๅฆไธๆบๅถ๏ผๆฅๅฃใ |
ไธไธไธชไพๅญ: ๆฅๅฃ