ruby語法

The Ruby?language makes it easy to create functions.

Ruby語言使創建函數變得容易。

Function Syntax

功能語法

def functionname(variable)?? return <value>end

def functionname(variable)return <值>結束

Examples

例子

Your function can compute values and store them in local variables that are specific to the function. Those values can then be returned with the return statement.

您的函數可以計算值并將它們存儲在該函數特定的局部變量中。 然后可以使用return語句返回這些值。

def say_hello(name)?? var =?“Hello, ” + name?? return varend

def say_hello(name)var =“你好，” +名稱返回varend

The return statement also can be shortened for very simple functions into a single line

對于非常簡單的功能，還可以將return語句縮短為一行

def say_hello(name)?? return “Hello, ” + nameend

def say_hello(name)返回“ Hello，” + nameend

You can simplify the function further. The last expression that is evaluated is automatically returned by the method. For example:

您可以進一步簡化功能。 該方法自動返回最后一個求值表達式。 例如：

def say_hello(name)?? “Hello, ” + nameend

def say_hello(name)“你好，” + nameend

This would return the same value as the prior functions.

這將返回與先前功能相同的值。

To call a function

調用功能

function param1, param2

函數param1，param2

or

要么

function(param1,param2)

函數(param1，param2)

Example

例

puts say_hello(“Geek”)

放置say_hello(“ Geek”)

翻譯自: https://www.howtogeek.com/howto/programming/ruby/ruby-function-method-syntax/

ruby語法

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