举破天
# coding: utf-8
import random
def chose(num_chose,weight,id): ## 输入摇号名额，参与摇号人员的ID和权重
if len(weight) != len(id):
return u"摇号人数与权重人数不等，请重新输入"
else:
num = len(id)
l_weight = []
for k in range(num):
if k == 0:
l_weight.append(weight[k])
else:
l_weight.append(l_weight[k-1]+weight[k]) ##计算累积权重
luck_id = [] ##列表记录摇号结果
for n in range(num_chose):
luck_num = random.uniform(0,l_weight[num-1]) ##生成每次摇号的幸运值
for m in range(num):
if luck_num <= l_weight[m]:
luck_id.append(id[m])
break
return luck_id
if __name__ == '__main__':
num = 100 ##参与摇号的总人数
weight = []
for i in range(num):
weight.append(random.uniform(0,1)) ## 生成随机权重，也可从屏幕或文件读取
id = []
for j in range(num):
id.append(j+1) ## 与权重对应的摇号人编码、姓名，实际可从文件或屏幕读取
print u"摇号结果：",chose(3,weight,id) ## 试验设置名额为3
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