import numpy as np
a = np.arange(100)
print(np.sum(a))#求和
print(np.mean(a))#平均值
print(np.max(a))#最大值
print(np.min(a))#最小值
print(np.std(a))#标准差
print(np.var(a))#平方差
import numpy as np
a = np.arange(100)
print(np.sum(a))#求和
print(np.mean(a))#平均值
print(np.max(a))#最大值
print(np.min(a))#最小值
print(np.std(a))#标准差
print(np.var(a))#平方差