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freeCodeCamp/guide/chinese/swift/functions/index.md
Shane e1fc7c15d6 change functions example (#21190)
just by calling function won't print out the result and since the input name is Chinese and the output should also be chinese.
2018-10-29 17:59:52 -04:00

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---
title: Functions
localeTitle: 功能
---
## 功能
Swift中的函数由参数和返回类型组成。可以使用以下基本结构创建函数 \`\`\`斯威夫特 func sayHellonameOfPersonString - > String { let hello =“Hello”+ nameOfPerson +“。” return hello }
运行函数: print(sayHello (nameOfPerson“史蒂夫”)) ` `` In this example, the function sayHello takes in a string name and prints out the phrase` 输出结果是: “Hello史蒂夫。”。
## 功能参数
函数不需要任何输入参数或返回类型。但是,在命名函数后,这需要括号。 \`\`\`斯威夫特 func helloSteve{ 打印(“你好,史蒂夫。”) }
helloSteve//打印出“HelloSteve”。 \`\`\`