ubuntu之swift环境搭建

想着学习一下很火的swift，首先肯定是 ubuntu里swift环境搭建，其实过程跟搭建java的环境是类似的

官网下载压缩包：https://swift.org/download/#releases  

Requirements
Ubuntu 14.04 or 15.10 (64-bit)

由于是在VirtualBox虚拟机环境下，上面的压缩包有ubuntu版本要求，我安装的是15.10 (64-bit) ，安装过程可以参考上一篇 ，不会分区啥的就别点自己分区了，还是默认选第一个，让系统自己去分。

虚拟机安装好后，我是弄了一个共性文件夹，把下载好的 swift-2.2-RELEASE-ubuntu15.10.tar.gz 复制进虚拟机解压

mkdir swift && cd swift;

tar xvt swift-2.2-RELEASE-ubuntu15.10.tar.gz

cd swift-2.2-RELEASE-ubuntu15.10

接着配置环境：

gedit $HOME/.bashrc

在最后新增：

#swift
export SWIFT_HOME=$HOME/swift/swift-2.2-RELEASE-ubuntu15.10
export PATH=$SWIFT_HOME/usr/bin:$PATH
export LD_LIBRARY_PATH=$SWIFT_HOME/usr/lib:$LD_LIBRARY_PATH
export LIBRARY_PATH=$SWIFT_HOME/usr/lib:$LIBRARY_PATH

重启一下环境：source ~/.bashrc（不放心你就重启  reboot -h ）

然后输入： swift  出现如下

环境就配好了

在上面的输入模式下

:help   打开帮助

:q   退出

1> let hello = "hello";
hello: String = "hello"

2> print(hello);
hello 

3>hello.   ///然后按Tab ,会有提示
Available completions:
    append(c: Character) -> Void
    append(x: UnicodeScalar) -> Void
    appendContentsOf(newElements: S) -> Void
    appendContentsOf(other: String) -> Void
    characters: String.CharacterView
    debugDescription: String
    endIndex: Index
    hashValue: Int
    insert(newElement: Character, atIndex: Index) -> Void
    insertContentsOf(newElements: S, at: Index) -> Void
    isEmpty: Bool
    lowercaseString: String
    nulTerminatedUTF8: ContiguousArray<CodeUnit>
    removeAll() -> Void
    removeAll(keepCapacity: Bool) -> Void
    removeAtIndex(i: Index) -> Character
    removeRange(subRange: Range<Index>) -> Void
    replaceRange(subRange: Range<Index>, with: C) -> Void
    replaceRange(subRange: Range<Index>, with: String) -> Void
    reserveCapacity(n: Int) -> Void
    startIndex: Index
    unicodeScalars: String.UnicodeScalarView
    uppercaseString: String
    utf16: String.UTF16View
    utf8: String.UTF8View
    withCString(f: UnsafePointer<Int8> throws -> ResultUnsafePointer<Int8> throws -> Result) -> Result
    withMutableCharacters(body: (inout String.CharacterView) -> R(inout String.CharacterView) -> R) -> R
    write(other: String) -> Void
    writeTo(&target: Target) -> Void
  4> hello.isEmpty
$R0: Bool = false

参考： http://www.linuxidc.com/Linux/2015-12/125983.htm

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