我试图实现一个函数，将（）插入数组中

Question

def insertElement(element, position, array):
    last = len(array) - 1
    if position > len(array) or position < 0:
        print("position does not exist")
    else:
        for q in range(len(array)+1, position, -1):
            array[q+1] = array[q]
            print(array)
        last += 1
        array[position] = element

错误消息：

array[q+1] = array[q] IndexError: list index out of range

Answer 1

您需要扩展列表，否则将分配给不存在的索引。
还有，循环

for q in range(len(array)+1, position, -1):

应该从len(array)-2开始到position-1

因此，您的代码变为：

def insertElement(element, position, array):
    last = len(array) - 1
    if position > len(array) or position < 0:
        print("position does not exist")
    else:
        array.append('_')
        for q in range(len(array)-2, position-1, -1):
            array[q+1] = array[q]
        array[position] = element