import codecs
with codecs.open(r'd:\\骅锋\\mall\\layouts\\admin\\AdminLayout.uvue', 'r', 'utf-8') as f:
    text = f.read()

import re
match = re.search(r'<view\s+class=[\'"]main-content[\s\S]*?<\/view>', text)
if match:
    print(match.group(0)[:500])