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

text = text.replace('function goToUserCenter() {', 'function goToUserCenter() {\n  uni.showToast({ title: "尝试打开个人中心...", icon: "none", duration: 2000 });\n  console.log([AdminHeader] goToUserCenter called);')

with codecs.open(file_path, 'w', 'utf-8') as f:
    f.write(text)