base64转换 获取svg中的图片（注意空格，虽然编辑svg并未发现有空格）

import os, base64,re
li=os.listdir(r'C:\Users\lenovo\Desktop\allsvg')
os.chdir(r'C:\Users\lenovo\Desktop\allsvg')
print(li)
for i in li:
    with open(i,mode='rb') as f:
        m=f.read()
        # print(m)
        # print(type(m))
        # print(m.decode('utf-8'))
        s=m.decode('utf-8')
        # print(type(s))
        # print(s)
        goal=re.findall('base64,(.*?)"',s,re.S)
        print(goal)
        if goal==[]:
            print(i)
        imgdata = base64.b64decode(goal[0])
        with open(i.split('.')[0]+'.jpg', 'wb') as f:
            f.write(imgdata)