How to set up debug with swift

This time I will show you how to set up debug with swift, and what are the precautions for setting up debug with swift. The following is a practical case, let's take a look.

In OC, you can set #if DEBUG #else #endif to distinguish the formal environment and the test environment

#if DEBUG

... Simulation data

#else

... Real data

#endif

But there is no default tag in swift, so the above writing method does not work. But it can be passed Manually set it yourself to achieve the effect of OC. The specific steps are as follows:

In Build setting >>>

Search swift fl >>> Find Other Swift Flags and Expand>>> Find Debug and click the "+" sign>>>Write -D DEBUG in the input box (where -D is the fixed mode and the DEBUG after it can be customized)

Set DEBUG flag

Called in swift the same as OC

#if DEBUG

... Simulated data

#else

... Real data

#endif

I believe you have read the case in this article You have mastered the method. For more exciting information, please pay attention to php Chinese website

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