这一篇来学一下multiple styles，多种样式的组合使用，还是通过codeblock来模拟代码的运行，代码如下：
void lv_multiple_style_test(){static lv_style_t style_base;lv_style_init(&style_base);lv_style_set_bg_color(&style_base, lv_palette_main(LV_PALETTE_LIGHT_BLUE));lv_style_set_border_color(&style_base, lv_palette_darken(LV_PALETTE_LIGHT_BLUE, 3));lv_style_set_border_width(&style_base, 2);lv_style_set_radius(&style_base, 10);lv_style_set_shadow_width(&style_base, 10);lv_style_set_shadow_ofs_y(&style_base, 5);lv_style_set_shadow_opa(&style_base, LV_OPA_50);lv_style_set_text_color(&style_base, lv_color_white());lv_style_set_width(&style_base, 100);lv_style_set_height(&style_base, LV_SIZE_CONTENT);static lv_style_t style_warning;lv_style_init(&style_warning);lv_style_set_bg_color(&style_warning, lv_palette_main(LV_PALETTE_YELLOW));lv_style_set_border_color(&style_warning, lv_palette_darken(LV_PALETTE_YELLOW, 3));lv_style_set_text_color(&style_warning, lv_palette_darken(LV_PALETTE_YELLOW, 4));lv_obj_t * label = NULL;lv_obj_t * obj_base = lv_obj_create(lv_scr_act());if (obj_base != NULL){lv_obj_add_style(obj_base, &style_base, 0);lv_obj_align(obj_base, LV_ALIGN_LEFT_MID, 200, 0);label = lv_label_create(obj_base);if (label != NULL){lv_label_set_text(label, "Base");lv_obj_center(label);}}lv_obj_t * obj_warning = lv_obj_create(lv_scr_act());if (obj_warning != NULL){lv_obj_add_style(obj_warning, &style_base, 0);lv_obj_add_style(obj_warning, &style_warning, 0);lv_obj_align(obj_warning, LV_ALIGN_RIGHT_MID, -200, 0);label = lv_label_create(obj_warning);if (label != NULL){lv_label_set_text(label, "Warning");lv_obj_center(label);}}}
运行效果：
