语法: deffunctionname( parameters ):"""comments"""function_suitereturn[expression] 实例: deffunc(parameter):"""打印传入的字符到显示设备上"""print(parameter)returnparameter 二:函数调用 定义一个函数只给了函数一个名称,指定了函数里包含的参数,和代码块结构。 这个函数的基本结构完成以后,可以通过另一个...
下面是一个简单示例，阐释了上述定义中突出显示的关键组件：# define a function named add_two # the functiontakes an input int as its argument defadd_two(a):# the function isto add 2 to the input argument b = a +2 # the functionreturns the sum as output return b 在上一部分中，我们提...
In the above code, we start by using the input() function to ask the user for two integers. The input() function takes a string as an argument, which is displayed to the user as a prompt. The user can then enter a value, which is returned by the input() function as a string. S...
Required inputs are called arguments to the function.To require an argument, put it within the parentheses:Python Kopioi def distance_from_earth(destination): if destination == "Moon": return "238,855" else: return "Unable to compute to that destination" ...
dump) Help on function dump in module pickle: dump(obj, file, protocol=None) (END) [root@Node3 tmp]# cat test2 hello n [77]: pickle.dump(l1,f1) #前面已经定义了l1和f1,f1要是已打开的文件 In [78]: f1.flush() [root@Node3 tmp]# cat test2 hello (lp0 I1 aI2 aI3 aS'4' p1...
经常会听到钩子函数(hook function)这个概念,最近在看目标检测开源框架mmdetection,里面也出现大量Hook的编程方式,那到底什么是hook?hook的作用是什么? what is hook ?钩子hook,顾名思义,可以理解是一个挂钩,作用是有需要的时候挂一个东西上去。具体的解释是:钩子函数是把我们自己实现的hook函数在某一时刻挂接到目标...
1. input函数知识回顾 input[ˈɪnpʊt]输入，投入。【功能】input函数可以提示并接收用户输入的...
20 Help on function echo in module __main__: 21 22 echo(anything) 23 echo return its input argument 24 (END) 25 26 # 当然我们同样可以用 """ 多行字符说明文档""" 的形式添加多行说明文档,而且更规范 27 >>> def print_if_true(thing,check): ...
Functions as Arguments 函数作为参数 So far the arguments we have passed into functions have been simple objects like strings, or structured objects like lists. Python also lets us pass a function as an argument to another function. Now we can abstract out the operation, and apply a different...
defchange_int(a):a=10b=2print('origin b=',b)change_int(b)print('after call function change_int(), b=',b) 输出结果,传递的变量b并没有发生改变。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 origin b=2after callfunctionchange_int(),b=2 ...