例子:
#Simple python programme to understand random.seed() importance
import random
random.seed(10)
print(random.randint(1,100))
#和seed 10 结果一样
random.seed(10)
print(random.randint(1,100))
random.seed(11)
print(random.randint(1,100))
#没有对应seed的时候
random.seed(10)
print(random.randint(1,100))
#和seed 11 结果一样
random.seed(11)
print(random.randint(1,100))
74
74
58
74
58
例子2:
import random
import numpy as np
np.random.seed(10)
print(np.random.random())
#和seed 10 结果一样
np.random.seed(10)
print(np.random.random())
np.random.seed(11)
print(np.random.random())
#没有对应seed的时候
print(np.random.random())
#和seed 11 结果一样
np.random.seed(11)
print(np.random.random())
0.771320643266746
0.771320643266746
0.1802696888767692
0.019475241487624584
0.1802696888767692
参考:
https://stackoverflow.com/questions/22639587/random-seed-what-does-it-do