Aguangliang的博客

# 判断是否为"素数" def is_prime_number(number): if number <= 1: return False elif number == 2 or number == 3: return True else: for i in range(2, number): if number % i == 0: return False

`import math a = eval(input()) b = eval(input()) c = eval(input()) judge = b ** 2 - 4 * a * c if a != 0: if judge > 0: x1 = (-b + math.sqrt(judge)) / (2 * a) x2 = (-b - math.sqrt(judge)) / (2 * a) print(f"{max(x1, x2):.02f} {min(x1, x2):.02f}") elif jud

def function_choose(): print("-" * 20) print("1、添加学员\n2、删除学员\n3、修改学员信息\n4、查询学员信息\n5、显示所有学员信息\n6、退出系统") print("-" * 20) function = int(input("请选择操作：")) return function def name_search(): name = input("请输入学员的姓名：") for i in ra