修正背景色不一致的问题.

Signed-off-by: lion.chan <cy187lion@sina.com>

Ecology/01Studio/pyBoard/Demo/01Studio中文显示例程/tftch.py

@@ -8,7 +8,7 @@ WHITE = (255, 255, 255)
 def printCh(display, text, x, y, dic={}, size=1, color=(0,0,0), backcolor=(255,255,255)):
     font_size = [0, 16, 24, 32, 40, 48]	# 分别对应 size=1, 2, 3, 4, 5 的字体尺寸，0 无效。
     xs = x
-    # 定义字体颜色,RGB888转RGB565
+    # 定义字体颜色, RGB888 转 RGB565
     fc = ((color[0]>>3)<<11) + ((color[1]>>2)<<5) + (color[2]>>3)  # 字体
     bc = ((backcolor[0]>>3)<<11) + ((backcolor[1]>>2)<<5) + (backcolor[2]>>3)  # 字体背景颜色
     #
@@ -33,7 +33,7 @@ def printCh(display, text, x, y, dic={}, size=1, color=(0,0,0), backcolor=(255,2
             #
             xs += font_size[size]
         else:
-            display.printStr(text[i], xs, y, color, size=size)
+            display.printStr(text[i], xs, y, color, backcolor=backcolor, size=size)
             xs += int(font_size[size]/2)
         # if
     # for
@@ -43,11 +43,10 @@ if __name__ == '__main__':
     import fonts
     from tftlcd import LCD24
     ########################
-    # 构建1.5寸LCD对象并初始化
+    # 构建 2.4 寸 LCD 对象并初始化
     ########################
-    d = LCD24(portrait=1) #默认方向竖屏
-    #
-    #填充白色
+    d = LCD24(portrait=1) # 默认方向竖屏
+    # 填充白色
     d.fill(BLACK)
     #
     printCh(d, '零一科技01Tech', 0, 0, dic=fonts.hanzi_16x16_dict, size=1, color=RED, backcolor=BLACK)