//初始化label UILabel *label = [[UILabel alloc] init]; NSString *text = @"阿萨德j啊思考的卡洛斯抵抗力将萨克林顿将拉开始监督卡拉基斯克林顿j啊思考了监督卡时间考虑到j啊思考了登记卡收录机抵抗力。。。"; label.text = text; [label setNumberOfLines:0]; UIFont *font = [UIFont fontWithName:@"Arial" size:14]; //设置字体 label.font = font; CGSize constraint = CGSizeMake(300, 20000.0f); CGSize size = [text sizeWithFont:font constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap]; [label setFrame:CGRectMake(10, 0, size.width, size.height)]; [self.view addSubview:label];