def maximum(*numbers): #The parameters are collected into a tuple called numbers if len(numbers) == 0: return None else: maxnum = numbers[0] for n in numbers[1:]: if n > maxnum: maxnum = n return maxnum print(m
print('It's negative') if后面可以跟一个或多个elif,所有条件都是False时,还可以添加一个else:if x < 0: print('It's negative') elif x == 0: print('Equal to zero') elif 0 < x < 5: print('Positive but smaller than 5') else: print('Positive and larger than or equal to 5') ...
We can make them multiple lines And not have to deal with spacing This makes it easier to make readable comment headers """ print "And our code still works!" In Python, each variable type is treated like a class. If a string is assigned to a variable, the variable will contain ...
PEP 8: multiple statements on one line (colon) 解决方法:多行语句写到一行了,比如:if x == 2: print('OK')要分成两行写 PEP 8: line too long (82 > 79 characters) 解决方法:超过了每行的最大长度限制79 PEP 8: Simplify chained comparison 可简化连锁比较(例如:if a >= 0 and a <= 9: ...
. . <statement-N> # 方法重写演示 class Parent: # 定义父类 def myMethod(self): print ('调用父类方法') class Child(Parent): # 定义子类 def myMethod(self): print ('调用子类方法') c = Child() # 子类实例 c.myMethod() # 子类调用重写方法 super(Child,c).myMethod() #用子类对象调用...
Theprint()function has an optional keyword argument named end that lets us choose how we end each line. If we don’t want a new line to be printed we can just set the end value to an empty string. This can be handy when you want to print multiple variables on the same line. ...
for i in range(4): print(i) i = 10 Output: 0 1 2 3 Did you expect the loop to run just once? 💡 Explanation: The assignment statement i = 10 never affects the iterations of the loop because of the way for loops work in Python. Before the beginning of every iteration, the ...
(5) See what has been printed up to this step. Here the print statement in theNodeconstructor (line 5) has run 3 times. The user can navigate forwards and backwards through all execution steps, and the visualization changes to match the run-time state of the stack and heap at each step...
h_obj_a_content = h_obj.find_all('a')print(h_obj)print(h_obj_a_content) 运行脚本,您将获得以下输出: student@ubuntu:~/work$ python3 extract_from_wikipedia.py Output: Portal topics Activities
>>>myvar=3>>>myvar+=2>>>myvar5>>>myvar-=1>>>myvar4"""This is a multiline comment.The following lines concatenate the two strings.""">>>mystring="Hello">>>mystring+=" world.">>>print mystring Hello world.# This swaps the variablesinoneline(!).# It doesn't violate strong typ...