我如何更正 for 循环中的错误（它说 print func 不能返回任何值）？

Question

def generate_ticket(airline, source, destination, no_of_passengers):    if no_of_passengers <= 5 :        ticket_number_list = [""]*no_of_passengers        for i in range(0, no_of_passengers):            ticket_number_list[i] = print("'",airline,":",source[0:3],":",destination[0:3],":",(101+i),"'",",")    else:        ticket_number_list = [""]*5        for j in range(0,5):            ticket_number_list[j]=print("'",airline,":",source[0:3],":",destination[0:3],":",(101+j+(no_of_passengers-5)),"'",",")    return ticket_number_listprint(generate_ticket("AI", "Bangalore", "London", 3))

Answer 1

这里：

ticket_number_list[i] = print("'",airline,":",source[0:3],":",destination[0:3],":",(101+i),"'",",")

print不返回任何值，没有任何内容存储在ticket_number_list. 改用：

ticket_number_list[i] = "'" + airline + ":" + source[0:3] + ":" + destination[0:3] + ":" + (101+i) + "' "

同为 ticket_number_list[j]