- [NSParagraphStyle isEqualToString：]：在iOS10.3中发送到实例0x1702b2480的无法识别的选择器

Question

NSMutableParagraphStyle *paragraph=[[NSMutableParagraphStyle 
defaultParagraphStyle] mutableCopy];

[paragraph setLineBreakMode:NSLineBreakByCharWrapping];

NSDictionary *attrs = [NSDictionary dictionaryWithObjectsAndKeys:FONT_14, NSFontAttributeName, NSParagraphStyleAttributeName, paragraph,nil];
CGRect nvoiceStateSize = [tips boundingRectWithSize:line3size
                                 options:(NSStringDrawingTruncatesLastVisibleLine|NSStringDrawingUsesLineFragmentOrigin| NSStringDrawingUsesFontLeading)
                              attributes:attrs
                                 context:nil];

在执行boundingRectWithSize：

时崩溃了