如何创建一个矩阵，让用户在其中输入行和列，然后在Python中输入每个位置的值？

def create_matrix():
    rows = int(input("请输入矩阵的行数："))
    cols = int(input("请输入矩阵的列数："))
    
    matrix = []
    for i in range(rows):
        row = []
        for j in range(cols):
            value = input("请输入第{}行第{}列的值：".format(i+1, j+1))
            row.append(value)
        matrix.append(row)
    
    return matrix

matrix = create_matrix()
print(matrix)