除重启部分外，所有代码都很好。这部分的目的是询问用户是否要再次进行测验，或者在回答5个问题后退出测验，但我不能这样做。
import random
**restart == "yes"
while restart == "yes":**------this is the main part of the problem.whenever i run the program it says that restart is not defined and i just get even more confused.please,please help.
print("1.Addition")
print("2.Subtraction")
print("3.Multiplication")
print("4.Division")
print("5.exit")
score = 0
choice1=int(input("please select an option by entering the number\n"))
if choice1 == 1:
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"+",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"+",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score =score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"+",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score +1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"+",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
score = score + 1
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"+",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
print(score)
if q1 != answer:
print("incorrect")
print("your score out of 5 is")
print(score)
if choice1 == 2:
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"-",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"-",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score =score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"-",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"-",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"-",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
print(score)
if q1 != answer:
print("incorrect")
print("your score out of 5 is"/n)
print(score)
if choice1 == 3:
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"*",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"*",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score =score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"*",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score +1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"*",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
score = score + 1
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"*",num2)
answer = num1 + num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
print(score)
if q1 != answer:
print("incorrect")
print("your score out of 5 is",score)
if choice1 == 4:
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"/",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"/",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score =score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"/",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"/",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
if q1 != answer:
print("incorrect")
num1 = random.randint(1,5)
num2 = random.randint(1,5)
print ("what is",num1,"/",num2)
answer = num1 - num2
q1 = int(input(""))
if q1 == answer:
print ("good")
score = score + 1
print(score)
if q1 != answer:
print("incorrect")
print("your score out of 5 is"/n)
print(score)
if choice1 == 5:
print("bye,bye")
exit()
重新启动=输入（＆＃34;您想再次开始测验吗？是吗？否？＆＃34;） 如果重启==＆＃34;没有＆＃34;： 退出 -----这是问题的一部分，也是下面的问题。
答案 0 :(得分：1)
看一下restart的定义：
restart == "yes" # incorrect!
这是正确的：
restart = "yes" #correct
#rest of the code
您应该使用\n代替/n新行