Published on 4 1 月 2019Swift4.2画”图”(Graph)Written by guo看看你需要啥: 一些编程基础 一台装了Xcode的mac或者装了SwiftPlayground的iPad 学习 […]
Published on 31 12 月 2018Swift4.2:Nil cannot be assigned to type ‘UnsafeMutablePointer‘与Optional chainingWritten by guo由于直接抱着对其他语言的认识来使用swift,这个问题苦恼了我很久,当我用关键词“swift 空指针”搜索也没 […]