【急】【Python入门】 作业纠错 （为啥显示syntax error）？题目如图 我写的代码如下

Question

那个啥 图片照错了 题目里面没有说要用 “%f” 求给个不用"%f"的码。
"Your code will be provided an unknown value for x. (That is, don't specify x yourself.)

Write an if/elif/else statement which implements this piecewise expression and prints the result in the format 'x N'. Assume that the provided value is called x."

我写的代码如下：

if x < -1:
    x_N = 0
    print (x_N)
elif x>= -1 & x<=0 :
    x_N = 1+x
    print (x_N)
elif x>= 0 & x<=1 :
    x_N = 1-x
    print (x_N)
else:
    x_N = 0
    print (x_N)

Answer 1

elif x>= -1 & x<=0 :
这里用 and 而不是 &
别的地方类似