refer: ruby on rails - What does .call do? - Stack Overflow
Ruby使用call 可以調(diào)用方法或者proc
m = 12.method("+")
# => `method` gets the `+` method defined in the `Fixnum` instance
# m.class
# => Method
m.call(3) #=> 15
# `3` is passed inside the `+` method as argument
m.call(20) #=> 32send方法也可以調(diào)用方法，在本地寫一個測試：
def say_hi
? puts "hihi"
end
def say_goodbye
? puts "goodbye"
end
# 使用send方式調(diào)用方法
name = "say_hi"
send(name)
m = 12.method("+")
# => `method` gets the `+` method defined in the `Fixnum` instance
# m.class
# => Method
m.call(3)??? #=> 15
puts m.call(3)
# `3` is passed inside the `+` method as argument
m.call(20)?? #=> 32
puts m.call(20)運(yùn)行：ruby hi.rb
得到輸出：文章來源：http://www.zghlxwxcb.cn/news/detail-639238.html
hihi
15
32
文章來源地址http://www.zghlxwxcb.cn/news/detail-639238.html
到了這里，關(guān)于ruby send call 的簡單使用的文章就介紹完了。如果您還想了解更多內(nèi)容，請?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
![[ruby on rails] rails中使用graphQL](https://imgs.yssmx.com/Uploads/2024/02/500320-1.png)
![【Power Automate】在Power Automate中使用[將http請求發(fā)送到SharePoint ][Send an http request to SharePoint]](https://imgs.yssmx.com/Uploads/2024/02/459057-1.png)
