加减乘除求余都是很简单的数学计算,直接上代码
package main
import "fmt"
func main() {
demo61()
}
func demo61() {
var ret float32
//ret = getResult(5, 3, "+")
//fmt.Println("ret=", ret)
//ret = getResult(5, 3, "-")
//fmt.Println("ret=", ret)
//ret = getResult(5, 3, "*")
//fmt.Println("ret=", ret)<