CFAbsoluteTime start = CFAbsoluteTimeGetCurrent(); //在這寫入要計算時間的代碼 // do something CFAbsoluteTime end = CFAbsoluteTimeGetCurrent(); NSLog(@"%f", end - ...
CFAbsoluteTime start = CFAbsoluteTimeGetCurrent();
//在這寫入要計算時間的代碼
// do something
CFAbsoluteTime end = CFAbsoluteTimeGetCurrent();
NSLog(@"%f", end - start);