我敢肯定有更好的方法可以做到这一点，我知道这很简单，但是我是新手，所以请耐心等待。我试图通过两个函数（playersObject和setCalculations）设置结构（Calculations）的字段，更具体地说，我传入两个数组（{{1} }和playerData，从main到这些函数，并在这些函数中执行计算，并希望返回这些值，以便可以在结构中对其进行设置。
playerData2我收到错误package main
import (
"fmt"
"os"
"log"
"strings"
"bufio"
"strconv"
)
type playersObject struct {
firstname, lastname string
batting_average, slugging_percentage, OBP, teamaverage float64
}
func strToFloat(playerData []string, playerData2 []float64) []float64 {
for _, i := range playerData[2:] {
j, err := strconv.ParseFloat(i, 64)
if err != nil {
panic(err)
}
playerData2 = append(playerData2, j)
}
return playerData2
}
func (player *playersObject) setCalculations (playerData []string, playerData2 []float64) {
player.firstname = playerData[1]
player.lastname = playerData[0]
player.batting_average = (playerData2[2] + playerData2[3] + playerData2[4] + playerData2[5]) / (playerData2[1])
player.slugging_percentage = ((playerData2[2]) + (playerData2[3]*2) + (playerData2[4]*3) + (playerData2[5]*4) )/(playerData2[1])
player.OBP = (( playerData2[2] + playerData2[3] + playerData2[4] + playerData2[5] +playerData2[6] +playerData2[7])/ (playerData2[0]))
}
func (player *playersObject) Calculations () (string, string, float64, float64, float64, ) {
return player.firstname, player.lastname, player.batting_average, player.slugging_percentage, player.OBP
}
func main() {
reader := bufio.NewReader(os.Stdin)
fmt.Print("Enter file name: ")
fileName, err := reader.ReadString('\n')
if err != nil {
log.Fatalf("failed opening file: %s", err)
}
fileName = strings.TrimSuffix(fileName, "\n")
//fmt.Printf("%q\n", fileName)
file, err := os.Open(fileName)
scanner := bufio.NewScanner(file)
scanner.Split(bufio.ScanLines)
var fileOfPlayers []string
for scanner.Scan() {
fileOfPlayers = append(fileOfPlayers, scanner.Text())
}
file.Close()
// var total_Average_sum float64 = 0
var countofplayers float64 = 0
//var total_average float64 = 0
for _, player := range fileOfPlayers {
countofplayers ++
playerData := strings.Split(player, " ")
var playerData2 = []float64{}
playerData2 = strToFloat(playerData, playerData2)
player := playersObject{}
player.setCalculations(playerData, playerData2)
calcs := player.Calculations()
fmt.Println(firstname, lastname, batting_average, slugging_percentage, OBP)
}
}
multiple-value player.Calculations() in single-value contextand
我知道这是非常不正确的，但是我又是新手，请OOP。如果可以通过任何更简单的方式完成此操作，我都会接受并感谢所有帮助和提示。谢谢
答案 0 :(得分：2)
在这里，由于Calculations()返回了多个值而引发了错误，但是您正在尝试将其分配给单个变量。
您需要更改player.Calculations()方法的调用
calcs := player.Calculations()
到
firstname, lastname, batting_average, slugging_percentage, OBP := player.Calculations()
话虽如此，我建议您阅读有关here的golang的更多信息。您需要根据最佳实践重新编写代码