import random
def calculate_mean(data):
return sum(data) / len(data)
def calculate_median(data):
sorted_data = sorted(data)
n = len(sorted_data)
if n % 2 == 0:
return (sorted_data[n//2 - 1] + sorted_data[n//2]) / 2
else:
return sorted_data[n//2]
def calculate_variance(data):
mean = calculate_mean(data)
return sum((x - mean) ** 2 for x in data) / len(data)
def calculate_standard_deviation(data):
variance = calculate_variance(data)
return variance ** 0.5
class Cal: # 创建一个人类
"""定义计算类"""
def __init__(self, data): # 构造方法
self.data=data
def run(self): # 定义跑的方法
print(self.eye)
def calculate_mean(self):
temp=sum(self.data) / len(self.data)
return sum(self.data) / len(self.data)
def calculate_median(self):
sorted_data = sorted(self.data)
n = len(sorted_data)
if n % 2 == 0:
return (sorted_data[n//2 - 1] + sorted_data[n//2]) / 2
else:
return sorted_data[n//2]
def calculate_variance(self):
mean = calculate_mean(self.data)
return sum((x - mean) ** 2 for x in self.data) / len(self.data)
def calculate_standard_deviation(self):
variance = calculate_variance(self.data)
return variance ** 0.5
def main():
source = input("请选择数据来源: 1.系统自动生成随机数；2.键盘输入一组数据 ")
if source == '1':
data = [random.randint(1, 100) for _ in range(11)]
elif source == '2':
data = []
while True:
try:
num = input("请输入数字(直接输入回车退出): ")
if num == '':
break
data.append(float(num))
except ValueError:
print("请输入有效数字！")
else:
print("输入错误！")
if data:
cal1 = Cal(data) # 创建人类的实例
mean = calculate_mean(data)
median = calculate_median(data)
std_dev = calculate_standard_deviation(data)
print(f"序列为: {data}, 平均值: {mean:.2f}, 标准差: {std_dev:.2f}, 中位数: {median:.2f}")
print(f"序列为: {data}, 平均值: {cal1.calculate_mean():.2f}, 标准差: {cal1.calculate_standard_deviation():.2f}, 中位数: {cal1.calculate_median():.2f}")
#cal1.calculate_mean()
if __name__ == "__main__":
main()
