Question

我将如何设计此代码，当我进行循环时，前一个循环中的（x，y）值将存储在程序中。现在，如果我向程序添加一个循环块，则每个输入都会重置（x，y）值。

question = (input("Where do you want to go?: "));
y = 0
x = 0
if question in ["up"]:
    y = y + 1
    print("You've moved up one unit!")
    print("Your position is now ", x, y)

if question in ["down"]:
    y = y - 1
    print("You've moved down one unit!")
    print("Your position is now ", x, y)

if question in ["right"]:
    x = x + 1
    print("You've moved right one unit!")
    print("Your position is now ", x, y)

if question in ["left"]:
    y = y + 1
    print("You've moved left one unit!")
    print("Your position is now ", x, y)    

else:
    print("You can't go there.")

Answer 1

如果你添加一个循环和x，y重置每个输入，听起来你需要将x，y移出循环：

x=0
y=0
while True:
    # ask the question
    # process

而不是：

while True:
    # ask the question
    x=0
    y=0
    # process

Answer 2

你应该在循环之外初始化x和y

y = 0
x = 0
while True:
   question = (input("Where do you want to go?: "))
   ...

否则每次执行到达循环顶部时都会执行这些行

代码循环一次后，不会存储x和y值

2 个答案: