arr = [1,2,3,4,5,6,4,5,2,3,6,8,9,6,5,3,6,2,4]
dic={}for item in arr: if item in dic.keys(): dic[item]+=1 else: dic[item]=1dic= sorted(dic.items(), key=lambda d:d[1], reverse = True)本文共 236 字，大约阅读时间需要 1 分钟。
arr = [1,2,3,4,5,6,4,5,2,3,6,8,9,6,5,3,6,2,4]
dic={}for item in arr: if item in dic.keys(): dic[item]+=1 else: dic[item]=1dic= sorted(dic.items(), key=lambda d:d[1], reverse = True)转载于:https://www.cnblogs.com/Li---Chao/p/8647270.html