UILabel* contentLabel = [[UILabel alloc]initWithFrame:CGRectMake(20, 100, 200, 500)];
contentLabel.backgroundColor = [UIColor redColor];
contentLabel.numberOfLines = 0;
[self.view addSubview:contentLabel];
NSString *_test? =? @"首行縮進(jìn)根據(jù)字體大小自動(dòng)調(diào)整 間隔可自定根據(jù)需求隨意改變礼患。。。撇簿。恢口。孝宗。。" ;
NSMutableParagraphStyle *paraStyle01 = [[NSMutableParagraphStyle alloc] init];
paraStyle01.alignment = NSTextAlignmentLeft;? //對(duì)齊
/*
這里這里
*/
paraStyle01.headIndent = 0.0f;//行首縮進(jìn)
//參數(shù)：（字體大小17號(hào)字乘以2耕肩，34f即首行空出兩個(gè)字符）
CGFloat emptylen = contentLabel.font.pointSize * 2;
paraStyle01.firstLineHeadIndent = emptylen;//首行縮進(jìn)
paraStyle01.tailIndent = 0.0f;//行尾縮進(jìn)
paraStyle01.lineSpacing = 2.0f;//行間距
NSAttributedString *attrText = [[NSAttributedString alloc] initWithString:_test attributes:@{NSParagraphStyleAttributeName:paraStyle01}];
contentLabel.attributedText = attrText;
