Python效率和vs多个ifs Python是一种高级编程语言,以其简洁、易读、易学的特点而受到广泛使用。在处理条件判断时,Python提供了多种方式,包括使用多个if语句、使用if-elif-else语句以及使用字典等。下面将对Python效率和多个ifs进行讨论。 Python效率: Python是一种解释型语言,相对于编译型语言来说,其执行速度可能较慢。
然而,os.stat()的其余部分在不同平台上是相同的。 stat_info = os.stat(file_path)if"linux"insys.platformor"darwin"insys.platform:print("Change time: ", dt.fromtimestamp(stat_info.st_ctime))elif"win"insys.platform:print("Creation time: ", dt.fromtimestamp(stat_info.st_ctime))else:print(...
# 判断变量否为'python' flag = True # 条件成立时设置标志为真 print 'welcome boss' # 并输出欢迎信息 else: print name # 条件不成立时输出变量名称 # 当判断条件为多个值时 num = 5 if num == 3: # 判断num的值 print 'boss' elif num == 2: print 'user' else: print 'roadman' # 条件...
1#CaesarDecode.py2ptxt=input("请输入加密后文本:")3forpinptxt:4if"a"<=p<="z":5print(chr(ord("a")+(ord(p)-ord("a")-3)%26),end='')6elif"A"<=p<="Z":7print(chr(ord("A")+(ord(p)-ord("A")-3)%26),end='')8else:9print(p,end='') 实例3.3 1s ="""Gur Mra bs...
Get_rank() if rank == 0: msg = 'Hello, world' comm.send(msg, dest=1) elif rank == 1: s = comm.recv() print("rank %d: %s" % (rank, s)) else: print("rank %d: idle" % (rank)) 运行方式,命令行里执行: mpiexec -np 8 python MPI_test.py 得到如下结果: rank 4: idle ...
But the main advantage comes with multiple inheritance, where all sorts of fun stuff can happen. See the standard docs on super if you haven't already. Note that the syntax changed in Python 3.0: you can just say super().__init__() instead of super(ChildB, self).__init__() which...
def maxDepth(root): if not root: return 0 return max(maxDepth(root.left), maxDepth(root.right)) + 1 19 求两棵树是否相同 def isSameTree(p, q): if p == None and q == None: return True elif p and q : return p.val == q.val and isSameTree(p.left,q.left) and isSame...
1 import time 2 import threading 3 event = threading.Event() 4 def lighter(): 5 count = 0 6 event.set() #先设置绿灯 7 while True: 8 if count >5 and count < 10: #改成红灯 9 event.clear() #把标志位清了 10 print("\033[41;1mred light is on...\033[0m") 11 elif count...
winner="green"elifgreenspaces<redspaces:winner="red"else:winner="draw"ifwinner!
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