Python学习【二】

#coding=utf-8
# dict={"name":"lisi","age":20,"sex":1,"address":"aa"};
# search_val="aa";
# search_list=[];
# for key,val in dict.items():
# 	if val == search_val:
# 		search_list.append(key);
# print search_list;
#=======================================
# import string;
#str="123213sdjfslkjAFDSFDSFD";
# newList=[];
# for item in str:
# 	if not item.isdigit():
# 		newList.append(item);

# newList="".join(sorted(newList,reverse=True));

# print sorted(newList,key=string.upper);
# info=filter(lambda x:not x.isdigit(),list(str));
# info=sorted(info,reverse=False);
# print ‘‘.join(info);