Lihat Semua Pengeluaran

Termasuk bagian Dasar-Dasar dalam perjalanan Swift di Coddy. Pelajaran 80 dari 86.

Tantangan

Mudah

Di pelajaran sebelumnya, kamu menerapkan fitur "Add expense". Sekarang, terapkan fitur "View all expenses" untuk opsi "2".

Ubah kodemu agar menangani opsi "2":

Saat pengguna memasukkan "2", periksa apakah array expenses kosong
Jika array kosong, cetak No expenses recorded.
Jika array berisi pengeluaran, cetak Your expenses:, lalu tampilkan setiap pengeluaran pada barisnya sendiri dengan format - $X.XX (dengan X.XX sebagai jumlah pengeluaran)
Opsi "3" dan "4" harus tetap mencetak Coming soon...
Opsi "1" dan "5" harus tetap berfungsi seperti sebelumnya

Perilaku yang diharapkan:

Saat "2" dimasukkan tanpa pengeluaran, cetak No expenses recorded.
Saat "2" dimasukkan dengan pengeluaran, cetak judul lalu tampilkan setiap pengeluaran dengan tanda hubung dan tanda dolar

Contoh interaksi:

1. Add expense
2. View all expenses
3. Show total and average
4. Clear all expenses
5. Exit
2
No expenses recorded.
1. Add expense
2. View all expenses
3. Show total and average
4. Clear all expenses
5. Exit
1
Enter expense amount:
25.50
Expense added!
1. Add expense
2. View all expenses
3. Show total and average
4. Clear all expenses
5. Exit
1
Enter expense amount:
10.00
Expense added!
1. Add expense
2. View all expenses
3. Show total and average
4. Clear all expenses
5. Exit
2
Your expenses:
- $25.5
- $10.0
1. Add expense
2. View all expenses
3. Show total and average
4. Clear all expenses
5. Exit
5
Goodbye!

Coba sendiri

// Daily Expense Tracker - Menu Display

var expenses: [Double] = []

while true {
    // TODO: Write your code below to print the menu options
    // Each option should be on its own line with the format: "number. option text"
    print("1. Add expense")
    print("2. View all expenses")
    print("3. Show total and average")
    print("4. Clear all expenses")
    print("5. Exit")
    
    let choice = readLine()
    
    if choice == "1" {
        print("Enter expense amount:")
        if let input = readLine(), let amount = Double(input) {
            expenses.append(amount)
            print("Expense added!")
        }
    } else if choice == "2" {
        print("Coming soon...")
    } else if choice == "3" {
        print("Coming soon...")
    } else if choice == "4" {
        print("Coming soon...")
    } else if choice == "5" {
        print("Goodbye!")
        break
    } else {
        print("Coming soon...")
    }
}