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如果链表为空时,代码是否能正常工作? 如果链表只包含一个结点时,代码是否能正常工作? 如果链表只包含两个结点时,代码是否能正常工作? 代码逻辑在处理头结点和尾结点的时候,是否能正常...
普通计算平局值的写法: unsigned int mid, low, high; mid = (low + high) / 2; 这样可能会导致溢出: 16位系统中,当low和high都接近65535,当low和high相加就会溢出。 可以避免溢出的写法...
一、设置setting.py文件 # 设置图片/html/css等静态文件的路径 STATIC_URL = '/static/' STATIC_ROOT = os.path.join(os.path.dirname(file), 'static') STATICFILES_DIRS = ( ('css', os.pa...
class Animal: """ Animal类用于 """ def __init__(self, name, age, sex): self.name = name self.age = age self.sex = sex self.__height = 170 # 私有属性,......
class Animal: """ Animal类用于描述动物属性 """ type = "哺乳动物" def __init__(self, name, age, sex): self.name = name self.age = age self.sex = sex ......
# 求斐波那数列 :1,1,2,3,5,8,13,21,34...... ''' 函数生成器,关键字 yield ''' def get_fbn(max_num): a = 0 b = 1 c = list() while b <= max_num: tmp = a a =......
tkinter:GUI library for Python from tkinter import * import tkinter.simpledialog as dl import tkinter.messagebox as mb #设置GUI root = Tk() w = Label(root, text = 'Lable Title')...
#写文件 some_sentences = '''\ I don't know if l can do it... It does seem hard,you can make it! ''' f = open('sentence.txt', 'w') f.write(some_sentences) f.close #读文件 f = op...
#while number = 10 guess_flag = False while guess_flag == False: guess = int(input("Enter an integer:")) if guess == number: print('you guessed it right!') guess_......
number = 10 guess = int(input("Enter an integer:")) if guess == number: print('you guessed it right!') elif guess > number: print('you guessed it higher than that!') else: pr......
def foo(a, b): return a+b c = foo(3, 4) print("c:", c) def print_paras(fpara, *nums, **words): print("fpara:", str(fpara)) print("nums:", str(nums)) print("words:", str......
1、tuple的定义与打印 tuple_a = (1, 2, 3, 4, 5) print("a:",str(tuple_a)) 只有一个元素时,需要加逗号。不然会有歧义 tuple_b = (1,) print("b:",str(tuple_b)) 2、tuple定义之后tuple的结...
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