main.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import "fmt"
// order of conversion matters...
func main() {
speed := 100
force := 2.5
fmt.Printf("speed : %T\n", speed)
fmt.Printf("conversion: %T\n", float64(speed))
fmt.Printf("expression: %T\n", float64(speed)*force)
// TYPE MISMATCH:
// speed is int
// expression is float64
// speed = float64(speed) * force
// CORRECT: int * int
speed = int(float64(speed) * force)
fmt.Println(speed)
}
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