ARC和非ARC在项目中转换

f your project doesn't use ARC: you must add the -fobjc-arc compiler flag to SVHTTPRequest.m andSVHTTPClient.m in Target Settings > Build Phases > Compile Sources.

 

【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/cocoajin/p/3375389.html