iOS 11 & Swift 4 — week 1–8

Debug Console and Incorporate an open source library which is Object-C Code to make a Question APP

Two ways that you can use the debug console to guide your debugging work:
1. Dragging those file into your project(.h、.m、.bundle)
2. Make sure select like below to creating the bridging header
3. Importing the header file into bridging header

The Question APP:

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