How to learn ios application development?

Learning ios application development, from what began? Hope heroes twelve! ! !
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IOS learning roadmap

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@ Liyang_281
And then ask, ios application development development tool which should be ready for it?
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reference to the second floor jingmei02 reply:

@ liyang_281
And then ask, ios application development development tool which should be ready for it?

There QQ group shared this packaged IOS development tools 146864986, download it yourself
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@ Liyang_281
Thank you very much! ! !
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references, 5th Floor u012600264 reply:

Quote: references to the second floor jingmei02 reply:

@ Liyang_281
And then ask, ios application development development tool which should be ready for it?

There QQ group shared this packaged IOS development tools 146864986, you download it

Find tutorials, I halfway decent, previously learned C + +, looking for a rookie introductory tutorial