num = 5
if int(input("请输入第一次猜想的数字：")) == num:
print("恭喜，第一次就猜对了！")
elif int(input("猜错了，再猜一次"：)) == num:
print("猜对了")
elif int(input("猜错了，再猜一次："))== num:
print("恭喜，最后一次机会，猜对了")
else:
print("Sorry，全猜错了，我想的是：5")
The code asks the user to guess a number up to three times, comparing each guess to 5, and prints a message depending on whether the guess matches.
- Look closely at the second input line: the colon inside the string is a full-width character (：) placed outside the quotes, which breaks the syntax. Check that the colon is a normal ASCII colon and sits inside the string.
- Notice that each input is called only when the previous condition is false, so the user is prompted again only after a wrong guess. Think about whether that matches the intended flow of three separate attempts.