try to solve 18

Author: JavaProgrammerLB

18.py

@@ -1,61 +1,9 @@
-from PIL import Image
-from PIL import ImageDraw
-import logging
-
-
-def load_a_picture(path):
-    im = Image.open(path)
-    size = im.size
-    logging.info("size is {}, mode is: {}".format(size, im.mode))
-    return im
-
-
-def get_pixel_array(im, left_x, right_x, up_y, down_y):
-    ary = []
-    for x in range(left_x, right_x):
-        for y in range(up_y, down_y):
-                ary.append(im.getpixel((x, y)))
-    return ary
-
-
-def create_new_ary(ary1, ary2):
-    ary = []
-    for i in range(len(ary1)):
-        r1, g1, b1 = ary1[i]
-        r2, g2, b2 = ary2[i]
-        r, g, b = r1 - r2, g1 - g2, b1 - b2
-        t = (r, g ,b)
-        ary.append(t)
-    return ary
-
-
-def analysis_ary(rgbs):
-    for i in range(len(rgbs)):
-        print(rgbs[i])
-
-
-def create_new_picture(pixels, width, height):
-    result = Image.new(mode="RGB", size=(width, height))
-    drawer = ImageDraw.Draw(result)
-    count = 0
-    for x in range(width):
-        for y in range(height):
-            drawer.point((x, y), fill = pixels[count])
-            count += 1
-    return result
-
-
 if __name__ == "__main__":
-    logging.basicConfig(level=logging.DEBUG)
-    im = load_a_picture("swan/balloons.jpg")
-    size = im.size
-    width = size[0]
-    height = size[1]
-    ary1 = get_pixel_array(im, 0, int(width / 2), 0, height)
-    ary2 = get_pixel_array(im, int(width / 2), width, 0 , height)
-    logging.info("len(ary1) is: {}".format(len(ary1)))
-    logging.info("len(ary2) is: {}".format(len(ary2)))
-    ary = create_new_ary(ary1, ary2)
-    analysis_ary(ary)
-    result = create_new_picture(ary, int(width / 2), height)
-    result.show()
+    file1 = open("swan/left.patch", "r")
+    file2 = open("swan/liubei.txt", "w")
+    while True:
+        line = file1.readline()
+        if not line:
+            break
+        if line.startswith("+") or line.startswith("-"):
+            file2.write(line)