[英]How do you use Python Multiprocessing for a function with zero positional arguments?
[英]How do I clear positional arguments in my function(s) in Python?
add 時出現循環錯誤,但現在我可以將數據添加到我的 txt 文件中,使用“see”列出我的數據時會出現此錯誤。 下面是錯誤:
TypeError:list_champs() 采用 0 位置 arguments 但給出了 1。
我看不到我在不知不覺中添加了一個在當前代碼中不需要的參數。
# file = open("champs.txt", "w+")
FILENAME = "champs.txt"
def write_champs(champs):
with open(FILENAME, "w") as file:
for champ in champs:
file.write(champ + "\n")
def read_champs():
champs = []
with open(FILENAME) as file:
for line in file:
line = line.replace("\n", "")
champs.append(line)
return champs
def list_champs():
for i in range(len(champs)):
champ = champs[i]
print(str(i+1) + " - " + champs)
print()
def add_champ(champs):
champ = input("Champion: ")
#year = input("Season: ")
#champ = []
champs.append(champ)
#champ.append(year)
write_champs(champs)
print(champ + " was added.\n")
def display_menu():
print("Premier League Champions")
print("++++++++++++++++++++++++")
print("COMMANDS")
print("see - See the list of Champions")
print("add - Add a Champion to the list")
print("exit - Exit program")
print()
def main():
display_menu()
champs = read_champs()
while True:
command = input("Enter command: ")
if command == "see":
list_champs(champs)
elif command == "add":
add_champ(champs)
elif command == "exit":
print("Later!")
break
else:
print("Input not valid. Try again.")
if __name__ == "__main__":
main()
一如既往的幫助非常感謝!
您需要更改您的def list_champs
以支持 arguments:
def list_champs(champs):
for i in range(len(champs)):
champ = champs[i]
print(str(i+1) + " - " + champs)
print()
function定義
def list_champs():
function 調用
list_champs(champs)
你想讓 function 接受爭論嗎? 根據您的預期設計修復一個或另一個。
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