初学Python 语法无效 *更新
我正在为我的一门课完成一个程序,但我总是遇到“语法错误”,对我来说,Python是非常新的东西,所以请多包容我的无知。
这个语法错误出现在“if guess==(num_x+num_y):”这一行的冒号那里。如果有人能帮我,我会非常感激。
更新*
我修正了括号,谢谢你,abarnert,但现在我遇到了一个SyntaxError
。
Traceback (most recent call last):
File "C:\Users\Franz\Desktop\randomstudy.py", line 48, in <module>
main()
File "C:\Users\Franz\Desktop\randomstudy.py", line 25, in main
guess=int(input(num_x, "-", num_y, "=\n"))
TypeError: input expected at most 1 arguments, got 4
我已经更新了下面的代码,加入了括号。
def main():
import random
num_x=random.randint(-50,50)
num_y=random.randint(-50,50)
op=random.randint(0,3)
control=True
print("Welcome! Here is your random problem:\n")
if op==0:
while True:
guess=int(input(num_x, "+", num_y, "=\n"))
if guess==(num_x+num_y):
print("Congratulations! You have answered the problem correctly!")
break
else:
print("I’m sorry, that is not correct. Please try again.")
elif op==1:
while True:
guess=int(input(num_x, "-", num_y, "=\n"))
if guess==(num_x-num_y):
print("Congratulations! You have answered the problem correctly!")
break
else:
print("I’m sorry, that is not correct. Please try again.")
elif op==2:
while True:
guess=int(input(num_x, "*", num_y, "=\n"))
if guess==(num_x*num_y):
print("Congratulations! You have answered the problem correctly!")
break
else:
print("I’m sorry, that is not correct. Please try again.")
elif op==3:
while True:
guess=int(input(num_x, "/", num_y, "=(Please round to two decimal places)\n"))
if guess==(num_x/num_y):
print("Congratulations! You have answered the problem correctly!")
break
else:
print("I’m sorry, that is not correct. Please try again.")
main()
1 个回答
6
在那行之前缺少一个')':
guess=int(input(num_x, "+", num_y, "=\n")
if guess==(num_x+num_y):
正如Igor在评论中提到的,你还有其他几行也缺少闭合的括号,你也得把它们修好,不然几行之后你又会遇到另一个SyntaxError
(语法错误)。你可以考虑使用一些能帮助你检查括号是否配对的编辑器,这样会让你的编程生活轻松很多。
在Python中,这种情况没有其他语言那么常见,但发生的频率也足够高,所以每当你遇到莫名其妙的SyntaxError
时,最好先看看前一行。
(在大多数语言中,几乎任何表达式或语句都可以继续到下一行。但在Python中并不是这样——不过如果有一个开放的括号,括号内的表达式是可以继续到下一行的。)