我正在做一個項目來顯示 json 數(shù)據(jù)并檢查它們是否是閏年。我正在嘗試為IsLeapYear創(chuàng)建一個參數(shù)，以便在進(jìn)行測試時可以傳入一些 json 值，我嘗試使用User指向結(jié)構(gòu)的指針，以便可以傳入函數(shù)參數(shù)中的字段，但它不起作用.如何在函數(shù)參數(shù)中傳遞來自 user.json 的 json 數(shù)據(jù)，這樣我可以更輕松地進(jìn)行測試？只是為了讓您知道，我的測試文件中出現(xiàn)錯誤，因為我創(chuàng)建了 DateTest 字符串，但I(xiàn)sLeapYear不是字符串。這是我的代碼：main.go： package mainimport ( "encoding/json" "fmt" "io/ioutil" "log" "os" "time")// Users struct which contains// an array of userstype Users struct { Users []User `json:"users"`}// User struct which contains a name// a type and a list of social linkstype User struct { Firstname string `json:"fname"` Secondname string `json:"lname"` Date string `json:"date"`}var users Usersfunc Birthday() { // Open our jsonFile jsonFile, err := os.Open("users.json") // if we os.Open returns an error then handle it if err != nil { fmt.Println(err) } fmt.Println("Successfully Opened users.json") // defer the closing of our jsonFile so that we can parse it later on defer jsonFile.Close() // read our opened xmlFile as a byte array. byteValue, _ := ioutil.ReadAll(jsonFile) // we initialize our Users array // we unmarshal our byteArray which contains our // jsonFile's content into 'users' which we defined above json.Unmarshal(byteValue, &users) IsLeapYear(&users{Firstname: ""}, &users{Secondname: ""}) ---> passing the users fileds }func IsLeapYear(firstname *Users, secondname *Users) { // we iterate through every user within our users array and // print out the user Type, their name for i := 0; i < len(users.Users); i++ { date, err := time.Parse("2006/01/02", users.Users[i].Date) if err != nil { date, err = time.Parse("2006-01-02", users.Users[i].Date) // date, err = time.Parse("2006 01 02", users.Users[i].Date) if err != nil { log.Fatal("unsupported date format:", err) } }
1 回答
拉風(fēng)的咖菲貓
TA貢獻(xiàn)1995條經(jīng)驗 獲得超2個贊
在這里，我清理了你的代碼。現(xiàn)在測試應(yīng)該更容易編寫
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"os"
"time"
)
// Data struct which contains
// an array of users
type Data struct {
Users []User `json:"users"`
}
// User struct which contains the first + last name and the birthdate
type User struct {
FirstName string `json:"first_name"`
LastName string `json:"last_name"`
Date string `json:"date"`
}
func IsLeapYear(date time.Time) bool {
return date.Day()%400 == 0 || (date.Day()%4 == 0 && date.Day()%100 != 0)
}
func parseDate(date string) time.Time {
parsedDate, err := time.Parse("2006/01/02", date)
if err != nil {
parsedDate, err = time.Parse("2006-01-02", date)
if err != nil {
log.Fatal("unsupported date format:", err)
}
}
return parsedDate
}
func CheckBirthdateOf(user User) {
date := parseDate(user.Date)
fmt.Println("User Date: " + user.Date)
fmt.Println("User First Name: " + user.FirstName)
fmt.Println("User Last Name: " + user.LastName)
if IsLeapYear(date) {
fmt.Println(user.Date, "is a Leap Year ? ? ?")
if date.Day() == time.Now().Day() {
fmt.Println("TODAY IS YOUR BIRTHDAY AND A Leap YEAR, Happy birthday !!!?? ?? ?? ?? ")
} else {
fmt.Println("TODAY IS NOT YOUR BIRTHDAY, but it's a leap year..!!! ?? ?? ?? ")
}
} else {
fmt.Println(user.Date, " is Not a Leap Year ?? ?? ?? ")
fmt.Println("Your Date is neither a leap year nor your birthday..!!! ??????")
}
fmt.Println("")
}
func main() {
jsonFile, err := os.Open("users.json")
if err != nil {
panic(err)
}
fmt.Println("Successfully Opened users_data.json")
defer jsonFile.Close()
byteValue, _ := ioutil.ReadAll(jsonFile)
var usersData Data
json.Unmarshal(byteValue, &usersData)
for _, user := range usersData.Users {
CheckBirthdateOf(user)
}
}
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