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#coding: utf-8
#Auther: wjsaya
#**第 0005 题：**你有一个目录，装了很多照片，把它们的尺寸变成都不大于 iPhone5 分辨率的大小。
import os
from PIL import Image
def image_small(dir1, dir2):
list = os.listdir(dir1)
for i in list:
image = Image.open(dir1+'/'+i)
while True:
h,w = image.size
#获取图片原始大小,然后进死循环，不停缩小图片为原来的90%，直到大小缩小为iphone5所支持的分辨率。
if h < 1136:
#iphone5分辨率为1136x640
if w < 640:
break
image = image.resize((int(h*0.9),int(w*0.9)))
image.save(dir2+'/'+i)
print (dir1+'/'+i+"已处理，保存为："+dir2+'/'+i)
if __name__ == "__main__":
dir1 = input("缩小前图片存放目录为：")
dir2 = input("缩小后图片存放目录为：")
try:
os.mkdir(dir2)
except Exception:
print (Exception)
image_small(dir1, dir2)