Python求一种支持四种操作和一个变量的编程语言

你题目的解答代码如下：

def calcx(operations):
    x = 0
    for op in operations:
        if op=="--X" or op=="X--":
            x = x-1
        elif op=="++X" or op=="X++":
            x = x+1
    return x

operations = ["--X","X++","X++"]
print(calcx(operations))

如有帮助，望采纳！谢谢!