匿名函数:
# 函数名 = lambda 参数:返回值 dic={'k1':10,'k2':100,'k3':30} print(max(dic,key=lambda k:dic[k])) print(list(map(lambda tup:{tup[0]:tup[1]},zip((('a'),('b')),(('c'),('d')))))) #1. num=[1,2,3,4,5,6] ret=filter(lambda x:x%2==0,num) print(list(ret))
递归:
import sys sys.setrecursionlimit(100000) n=0 def story(): global n n+=1 print(n) story() story()
二分查找法:
#计算的方法 #二分查找法 l=[1,23,34,45,56,67,89,99,100] def find(l,aim,start=0,end=None): end=len(l) if end is None else end mix_index=(end-start)// 2+start if start<=end: if l[mix_index] <aim: return find(l,aim,start=mix_index+1,end=end) elif l[mix_index] >aim: return find(l,aim,start=0,end=mix_index-1) else: return mix_index else: print("找不到") ret=find(l,67) print(ret)