iOS開發隨筆

版權聲明：本文爲博主原創文章，未經博主允許不得轉載。如需轉載請標註! https://blog.csdn.net/qq_34347441/article/details/68484624

1.Swift中引用OC文件時, 頭文件名字需是這樣的格式: SGRecordTest_Bridging_Header_h

2.cannot convert value of type 'Void' (aka'()') to type String  是告訴我們不能讓Viod的值取作爲String, 有可能函數沒有返回值

3.

CoreText: *** Unmapped "?\uFE0F" <CTFont: 0x18498170>{name = .PingFangSC-Regular, size = 14.000000, matrix = 0x0, descriptor = <CTFontDescriptor: 0x184914b0>{attributes = <CFBasicHash 0x18499bf0 [0x3b25a170]>{type = mutable dict, count = 2,

        entries =>

       0 : <CFString0x38711a24 [0x3b25a170]>{contents ="UnicodeCharSet"} = <CFCharacterSet Bitmap>

       1 : <CFString0x38716d44 [0x3b25a170]>{contents ="NSFontNameAttribute"} = <CFString0x38712fc4 [0x3b25a170]>{contents =".PingFangSC-Regular"}

    }

    >}}

字符未能識別

4.當使用的約束需要更改是需要用lessthan或者morethan不能用equal(絕對的等於)

5.終端查看本機ip 輸入ifconfig (但是不是以太網的ip,以太網的ip要去系統偏好裏面看)

簡書博客地址

https://www.jianshu.com/u/3c7c13f3dc6b