用python代码写出来

当然可以，以下是用Python计算36选7彩票一等奖概率的一种简单方法，这里我们将直接使用math库中的factorial函数来计算阶乘：

import math

def calculate_combination(total_numbers, selected_numbers):
    return math.comb(total_numbers, selected_numbers)

def calculate_odds_of_winning(total_numbers, selected_numbers):
    total_combinations = calculate_combination(total_numbers, selected_numbers)
    all_ways_to_select = total_numbers ** selected_numbers
    probability = total_combinations / all_ways_to_select
    return probability

# 36选7的具体数字
total_numbers = 36
selected_numbers = 7

# 计算概率
odds_of_winning = calculate_odds_of_winning(total_numbers, selected_numbers)
odds_of_winning_rounded = round(odds_of_winning, 8)  # 四舍五入到小数点后8位显示

print(f"36选7的一等奖概率大约为: {odds_of_winning_rounded}")

运行上述代码后，你会得到一个近似的大数，代表一等奖的概率。请注意，这个结果是非常小的概率，实际操作中会用科学记数法来展示。