# -*- coding: utf-8 -*-  import asyncio from pyppeteer import launch   async def main():     browser = await launch({'headless': False})     page = await browser.newPage()     await page.goto('https://app.yinxiang.com/Login.action', {"timeout": 14 * 60000})     await page.type("#username", 'test123 哒哒哒')  asyncio.get_event_loop().run_until_complete(main()) 

打印信息

input options {} char step--> t if char key_definitions t char step--> e if char key_definitions e char step--> s if char key_definitions s char step--> t if char key_definitions t char step--> 1 if char key_definitions 1 char step--> 2 if char key_definitions 2 char step--> 3 if char key_definitions 3 char step--> 哒 else char --> 哒 Traceback (most recent call last):   File "F:/code_zhu/PyCode/py_work/Alibaba/tamll_spider/tamll_spider.py", line 14, in <module>     asyncio.get_event_loop().run_until_complete(main())   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libasynciobase_events.py", line 568, in run_until_complete     return future.result()   File "F:/code_zhu/PyCode/py_work/Alibaba/tamll_spider/tamll_spider.py", line 11, in main     await page.type("#username", 'test123 哒哒哒')   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libsite-packagespyppeteerpage.py", line 1589, in type     return await frame.type(selector, text, options, **kwargs)   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libsite-packagespyppeteerframe_manager.py", line 661, in type     await handle.type(text, options)   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libsite-packagespyppeteerelement_handle.py", line 217, in type     await self._page.keyboard.type(text, options)   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libsite-packagespyppeteerinput.py", line 217, in type     await self.sendCharacter(char)   File "C:UsersAdministratorAppDataLocalProgramsPythonPython37libsite-packagespyppeteerinput.py", line 186, in sendCharacter     await self._client.send('Input.insertText', {'text': char}) pyppeteer.errors.NetworkError: Protocol error (Input.insertText): 'Input.insertText' wasn't found  Process finished with exit code 1 

根据报错信息找到 input.py 文件

    async def type(self, text: str, options: Dict = None, **kwargs: Any                    ) -> None:         options = merge_dict(options, kwargs)         print("input options", options)  # 做的参数打印信息         delay = options.get('delay', 0)         for char in text:             print("char step-->", char)             if char in keyDefinitions:                 print("if char key_definitions", char)  # 做的参数打印信息                 await self.press(char, {'delay': delay})             else:                 print("else char -->", char)  # 做的参数打印信息                 await self.sendCharacter(char)             if delay:                 await asyncio.sleep(delay / 1000) 

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