标签:return oat import seed time for main __init__ int
import time
class Util(object):
def __init__(self):
self.index = 624
self.MT = [0] * 624
def inter(self,t):
return (0xFFFFFFFF & t) # 取最后32位->t
def twister(self):
for i in range(self.index):
y = self.inter((self.MT[i] & 0x80000000) + (self.MT[(i + 1) % self.index] & 0x7fffffff))
self.MT[i] = self.MT[(i + 397) % self.index] ^ y >> 1
if y % 2 != 0:
self.MT[i] = self.MT[i] ^ 0x9908b0df
self.index = 0
def exnum(self):
if self.index >= 624:
self.twister()
y = self.MT[self.index]
y = y ^ y >> 11
y = y ^ y << 7 & 2636928640
y = y ^ y << 15 & 4022730752
y = y ^ y >> 18
self.index = self.index + 1
return self.inter(y)
def mainset(self,seed):
self.MT[0] = seed # seed
for i in range(1, self.index):
self.MT[i] = self.inter(1812433253 * (self.MT[i - 1] ^ self.MT[i - 1] >> 30) + i)
return self.exnum()
def randomint(self,min_num,max_num):
try:
so = float(self.mainset(int(time.time()))) / (2 ** 32 - 1)
rd = min_num + int((max_num - min_num) * so)
return rd
except Exception as ex:
print "randomint function excute exception:" + str(ex)
标签:return oat import seed time for main __init__ int
原文地址:https://www.cnblogs.com/chmyee/p/9924195.html