cocoaPods中的podfile介绍;如何指定版本号

pod 'AFNetworking', '~> 1.0' 版本号可以是1.0,可以是1.1,1.9,但必须小于2

-个更简单的podfile:

pod 'AFNetworking', '1.0' // 版本号指定为1.0

一个更更简单的podfile:

pod 'AFNetworking',  // 不指定版本号,任何版本都可以

一个复杂的podfile:

Besides no version, or a specific one, it is also possible to use logical operators:

'> 0.1'Any version higher than 0.1 0.1以上

'>= 0.1'Version 0.1 and any higher version 0.1以上,包括0.1

'< 0.1'Any version lower than 0.1 0.1以下

'<= 0.1'Version 0.1 and any lower version 0.1以下,包括0.1

In addition to the logic operators CocoaPods has an optimisic operator~>:

'~> 0.1.2'Version 0.1.2 and the versions up to 0.2, not including 0.2 and higher 0.2以下(不含0.2),0.1.2以上(含0.1.2)

'~> 0.1'Version 0.1 and the versions up to 1.0, not including 1.0 and higher 1.0以下(不含1.0),0.1以上(含0.1)

'~> 0'Version 0 and higher, this is basically the same as not having it. 0和以上,等于没有此约束

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