摘要: 1、统计列表中正数和负数的数量a = [1,3,5,7,0,-1,-9,-4,-5,8]b = []c = []for i in a : if i>0: b.append(i) elif i<0: c.append(i) else: pass print (len(b)) print (len(c) 阅读全文
posted @ 2021-03-05 19:36 zhangxiaofeng123456 阅读(648) 评论(0) 推荐(0)