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在Python中我可以循環回到特定行嗎?

[英]in Python can i loop back to a specific line?

因此,我正在嘗試制作一個程序,用戶可以在其中輸入命令以到達他們要去的地方(啟動另一個程序,等等。),但是當他們輸入命令時,可以到達該命令的結尾(本節)和該程序停止運行

command = input('Please enter a command or enter help for a list of commands:')
if command in ['help', 'Help', 'HELP', '?']:
    print("\t music \t Listen to music (XXXX songs)")

print("\t")
print("")

if command in ['music', 'Music']:
    print("Genres:")
print("Rap")
print("Rock")
print("Pop")
print ("Country")
print("\t\t")

genre = input('What genre do you want to listen to?:')

if genre in ['Rap', 'rap', 'RAP']:
    print("Songs (alphabetical order):")

if genre in ['Rock', 'rock', 'ROCK']:
    print("Songs (alphabetical order):")

if genre in ['Pop', 'pop', 'POP']:
    print("Songs (alphabetical order):")

所以我的問題是如何使它回到頂部(命令)

您必須循環播放,直到用戶決定退出:

command = ""

while command.lower() != 'q':
    command = input('Please enter a command or enter help for a list of commands (enter q to quit) :')

    if command in ['help', 'Help', 'HELP', '?']:
        print("     music       Listen to music (XXXX songs)")
        print("     ")
        print("")
        continue


    if command in ['music', 'Music']:
        print("Genres:")
        print("Rap")
        print("Rock")
        print("Pop")
        print ("Country")
        print("                         ")
        genre = input('What genre do you want to listen to?:')
    if genre in ['Rap', 'rap','RAP']:
        print("Songs (alphabetical order):")

    if genre in ['Rock', 'rock', 'ROCK']:
        print("Songs (alphabetical order):")

    if genre in ['Pop', 'pop','POP']:
        print("Songs (alphabetical order):")

看來您需要在while循環中包圍程序。 然后,讓他們有一個選擇,可以在完成后退出循環,結束程序。

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