#! /usr/bin/env python
#coding=utf-8
 
 
# =================================
# Describe :   测试random随机数分布
# D&P Author By:       常成功
# Create Date:      2017/10/07
# Modify Date:      2017/10/20
# (C) 2012-2017 All rights reserved
# =================================
 
 
import random
import time
 
def test_rnd():
  st_tm = time.time()
  j = 0
  num = 0
  the_list = [1, 2, 3, 4]
  # 计数字典
  temp_dic = {1: 0, 2: 0, 3: 0, 4: 0}
  while 1:
    x = random.choice(the_list)
    temp_dic[x] += 1
    j += 1
    # 跑一千万次
    if j >= 10000000:
      break
  ed_tm = time.time()
  print "Test random.choice()---------------------------:"
  print "loop num: ", j
  print "take time: ", ed_tm-st_tm
  print "temp_dic :", temp_dic
 
  print "Test random.randint()---------------------------:"
  st_tm = time.time()
  j = 0
  num = 0
  # 计数字典
  temp_dic = {1: 0, 2: 0, 3: 0, 4: 0}
  while 1:
    x = random.randint(1, 4)
    temp_dic[x] += 1
    j += 1
    # 跑一千万次
    if j >= 10000000:
      break
  ed_tm = time.time()
  print "loop num: ", j
  print "take time: ", ed_tm-st_tm
  print "temp_dic :", temp_dic
 
 
if __name__ == '__main__':
  test_rnd()