修改系统字体的大小
objective-c:
UILabel *label = [[UILabel alloc] init];
[label setFont:[UIFont systemFontOfSize:12]];
swift:
let label = UILabel()
label.font = UIFont.systemFontOfSize(12)
objective-c:
UILabel *label = [[UILabel alloc] init];
[label setFont:[UIFont systemFontOfSize:12]];
swift:
let label = UILabel()
label.font = UIFont.systemFontOfSize(12)