1、定义的不同 parameter是在定义函数或方法时在括号内部填写的变量，用来输入数据或值。argument则是在调用一个函数或方法时传递给函数的实际数据或值。例句：①In the function definition def square(n), “n” is a parameter. 在函数定义 def square(n)“中，n” 是一个参数。
Then, function printDouble is called, and the value of argument num is copied into the value parameter of function printDouble. Function printDouble then uses the value of parameter value. Using return values as arguments In the above problem, we can see that variable num is only used once,...
When a parameter is passed to the function, it is called an argument. So, from the example above: name is a parameter, while Liam, Jenny and Anja are arguments.Multiple ParametersInside the function, you can add as many parameters as you want:...
When aparameteris passed to the function, it is called anargument. So, from the example above:fnameis aparameter, whileLiam,JennyandAnjaarearguments. Exercise? What is a parameter in a C++ function? A variable inside the function that receives data ...
Only one value is passed during the function call. So, according to the positional argument2is assigned to argumenta, and the default value is used for parameterb. 3. add_numbers() No value is passed during the function call. Hence, default value is used for both parametersaandb. ...
When a function modifies an argument that is passed by reference, it modifies the original object, not a local copy. To prevent a function from modifying such an argument, qualify the parameter as const&: C++ voidDoSomething(conststd::string& input){...} ...
这些参数被称为形式参数,简称形参( parameter )。而在调用这个方法时,需要调用者提供与原方法定义相匹配的参数( 类型、数量及顺序都一致 ),这些实际调用时提供的参数称为实际参数,简称实参( argument )。 例如: int max(int num1,int num2) //参数num1,num2为形参...
On the other hand, the parameter age has a default value, so it is optional during a function call. Note: 1. If you provide a value to the default argument during a function call, it overrides the default value. For example, in the following program we have overriden the age of Lucy...
If we define the parameters as default parameters, there will not any error occurred even you do not pass the parameter or pass the less parameters.Example# Default parameters def show(id="<no id>",name="<no name>"): print("Your id is :",id,"and your name is :",name) show(12,...
To make a function more reusable, you'll often want to pass information into it. This type of input is called a parameter. Also sometimes called an argument, a parameter is additional information that's sent to a function.Let's say you want to change your displayGreeting function to be...