上程式碼

    NSString *string  = @"我在時光裡蒞住，期待在每一個風輕雲淡的日子裡，可以寫出錦瑟生香的暖字。依著陽光安暖，悄然長成一朵瀲灩的花。\n等春天的情話落在時光的蒹葭，你眼中那寂靜的妥帖，便是我在花間築下的夢。";

    NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:string];

    // 文字顏色
    [attrString addAttribute:NSForegroundColorAttributeName
                       value:[UIColor redColor]
                       range:NSMakeRange(0
 
, 1)];

    // 字型大小
    [attrString addAttribute:NSFontAttributeName
                       value:[UIFont systemFontOfSize:24.f]
                       range:NSMakeRange(0, 2)];

    // 字元間距
    [attrString addAttribute:NSKernAttributeName
                       value:@2.f
                       range:NSMakeRange(0
 
, attrString.length)];


    // 設定段落樣式
    NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
    style.lineSpacing              = 10.f;  // 行間距
    style.paragraphSpacing         = 20.f;  // 段間距
    style.firstLineHeadIndent      = 20.f;  // 首行縮排

    [attrString addAttribute:NSParagraphStyleAttributeName
                       value:style
                       range:NSMakeRange(0
 
, attrString.length)];


    UILabel *label        = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, 320, 240)];
    label.numberOfLines   = 0;
    label.attributedText  = attrString;
    [self.view addSubview:label];

執行

參考資料：