同心圆的颜色还有其他方法做吗，视频里这个不太能理解

2024-05-22 15:42:18 [scrapy.utils.log] INFO: Scrapy 2.6.1 started (bot: scrapy07)

2024-05-22 15:42:18 [scrapy.utils.log] INFO: Versions: lxml 5.2.2.0, libxml2 2.11.7, cssselect 1.1.0, parsel 1.6.0, w3lib 1.22.0, Twisted 22.4.0, Python 3.11.3 (tags/v3.11.3:f3909b8, Apr  4 2023, 23:49:59) [MSC v.1934 64 bit (AMD64)], pyOpenSSL 22.0.0 (OpenSSL 1.1.1n  15 Mar 2022), cryptography 36.0.2, Platform Windows-10-10.0.22621-SP0

2024-05-22 15:42:18 [scrapy.crawler] INFO: Overridden settings:

{'BOT_NAME': 'scrapy07',

 'NEWSPIDER_MODULE': 'scrapy07.spiders',

 'SPIDER_MODULES': ['scrapy07.spiders']}

2024-05-22 15:42:18 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.selectreactor.SelectReactor

2024-05-22 15:42:18 [scrapy.extensions.telnet] INFO: Telnet Password: c658f43dc33b4451

2024-05-22 15:42:18 [scrapy.middleware] INFO: Enabled extensions:

['scrapy.extensions.corestats.CoreStats',

 'scrapy.extensions.telnet.TelnetConsole',

 'scrapy.extensions.logstats.LogStats']

Unhandled error in Deferred:

2024-05-22 15:42:18 [twisted] CRITICAL: Unhandled error in Deferred:

Traceback (most recent call last):

  File "D:\python_env\spider2_env\Lib\site-packages\scrapy\crawler.py", line 206, in crawl  

    return self._crawl(crawler, *args, **kwargs)

  File "D:\python_env\spider2_env\Lib\site-packages\scrapy\crawler.py", line 210, in _crawl 

    d = crawler.crawl(*args, **kwargs)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\internet\defer.py", line 1905, in unwindGenerator

    return _cancellableInlineCallbacks(gen)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\internet\defer.py", line 1815, in _cancellableInlineCallbacks

    _inlineCallbacks(None, gen, status)

--- <exception caught here> ---

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\internet\defer.py", line 1660, in _inlineCallbacks

    result = current_context.run(gen.send, result)

  File "D:\python_env\spider2_env\Lib\site-packages\scrapy\crawler.py", line 101, in crawl  

    self.spider = self._create_spider(*args, **kwargs)

  File "D:\python_env\spider2_env\Lib\site-packages\scrapy\crawler.py", line 113, in _create_spider

    return self.spidercls.from_crawler(self, *args, **kwargs)

  File "D:\code\python\spider_code\scrapy07\scrapy07\spiders\selenium.py", line 29, in from_crawler

    s = Service(executable_path='scrapy07/chromedriver.exe')

builtins.TypeError: Service.__init__() got an unexpected keyword argument 'executable_path' 

--- Logging error ---

Traceback (most recent call last):

  File "E:\Program Files\Python\Python311\Lib\logging\__init__.py", line 1110, in emit      

    msg = self.format(record)

          ^^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\logging\__init__.py", line 953, in format     

    return fmt.format(record)

           ^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\logging\__init__.py", line 695, in format     

    record.exc_text = self.formatException(record.exc_info)

                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\logging\__init__.py", line 645, in formatException

    traceback.print_exception(ei[0], ei[1], tb, None, sio)

  File "E:\Program Files\Python\Python311\Lib\traceback.py", line 124, in print_exception   

    te = TracebackException(type(value), value, tb, limit=limit, compact=True)

         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\traceback.py", line 690, in __init__

    self.stack = StackSummary._extract_from_extended_frame_gen(

                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\traceback.py", line 416, in _extract_from_extended_frame_gen

    for f, (lineno, end_lineno, colno, end_colno) in frame_gen:

  File "E:\Program Files\Python\Python311\Lib\traceback.py", line 353, in _walk_tb_with_full_positions

    positions = _get_code_position(tb.tb_frame.f_code, tb.tb_lasti)

                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "E:\Program Files\Python\Python311\Lib\traceback.py", line 366, in _get_code_position

    positions_gen = code.co_positions()

                    ^^^^^^^^^^^^^^^^^

AttributeError: '_Code' object has no attribute 'co_positions'

Call stack:

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\internet\defer.py", line 344, in __del__

    log.failure(format, self.failResult, debugInfo=debugInfo)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_logger.py", line 190, in failure

    self.emit(level, format, log_failure=failure, **kwargs)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_logger.py", line 142, in emit

    self.observer(event)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_observer.py", line 81, in __call__

    observer(event)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_legacy.py", line 90, in __call__

    self.legacyObserver(event)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\python\log.py", line 579, in emit

    _publishNew(self._newObserver, eventDict, textFromEventDict)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_legacy.py", line 147, in publishToNewObserver

    observer(eventDict)

  File "D:\python_env\spider2_env\Lib\site-packages\twisted\logger\_stdlib.py", line 112, in __call__

    self.logger.log(stdlibLevel, StringifiableFromEvent(event), exc_info=excInfo)

Message: <twisted.logger._stdlib.StringifiableFromEvent object at 0x0000026D24D85550>       

Arguments: ()

老师这个报错怎么解决啊？

rs = base64.decodebytes(data.encode())

decodebytes和b64decode是不是都能用

，这里data已经转码成字节类型

老师我这个还是显示乱码是什么怎么回事儿？我的文档换成了UTF-8为什么还是不行?

老师，这个和用VSCODE使用python区别大吗，如果我不用jupyter notebook 直接用vscode的python可以吗

前端

老师，上面的代码的不知道哪儿错了，对照视频发现写法都是一样的

问题:oradata的文件件双击点及不开，无反应，是不是属于没下载成功?

第七行 （point p）中的point是数据类型吗   我遇到第二次这种了 （point在前面第一行是类名  后来第七行怎么又变成了数据类型）第一次我记得computer就是这样      不太理解啊   老师在视频里没重点说过这

老师好，出现以下报错：

ERROR in ./src/views/UserView.vue?vue&type=script&setup=true&lang=js (./node_modules/unplugin/dist/webpack/loaders/transform.js?unpluginName=unplugin-vue-components!./node_modules/unplugin/dist/webpack/loaders/transform.js?unpluginName=unplugin-auto-import!./node_modules/babel-loader/lib/index.js??clonedRuleSet-40.use[0]!./node_modules/vue-loader/dist/index.js??ruleSet[0].use[0]!./src/views/UserView.vue?vue&type=script&setup=true&lang=js) 59:19  

import traceback
try:
    a = int(10.3)
    b = int(input("请输入一个不为0的数:"))
    c = a / b
    print(c)
except:
    traceback.print_exc()

运行图：我的记事本里并没有生成报错的。但是用with的时候就生成了，而且运行界面如下，按老师视频里讲的，这两个不是等价的吗，应该运行结果一样呀，为什么会这样呢

#traceback模块生成异常日志  coding=utf-8
import traceback
try:
    a = int(10.3)
    b = int(input("请输入一个不为0的数:"))
    c = a / b
    print(c)
except:
    with open(r"d:/a.txt","a") as f:
        traceback.print_exc(file=f)

老师这是怎么回事

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 22 in XML document from file [D:\java\高级\Dubbo\dubboparent\dubbo-user-provider\dubbo-user-service\target\classes\META-INF\spring\application-dubbo.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 22; columnNumber: 46; cvc-complex-type.2.4.c: 通配符的匹配很全面, 但无法找到元素 'dubbo:application' 的声明。

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 盒子模型之组成部分：
                1.内容区域 Content
                   1) 默认大小：由内容本身大小撑开
                   2）手动设置：由width和height两个属性来完成盒子大小设置

                2.内边距  Padding
                3.外边框  Border
                4.外边距  Margin-->

        <!-- 实操细节：
                    1.宽度设置百分比生效
                    2.高度设置百分比不生效，高度一般设置px
                 -->
    <style>
        .image{
            width:30%;   /*手动设置了图片内容大小，不压缩比例，只设置高度即可*/
            /* 因为手机屏幕大小不是固定尺寸的，所以手机宽度一般设置百分比，这样可以适配各种尺寸的手机，
            为原比例的30% */
        }
    </style>
</head>
<body>
    <img class="image" src="hmbb.jpg" alt="海绵宝宝">
</body>
</html>

问题：为什么高度height设置百分比不生效呢？

          搞不懂这个实操细节，意思是设置高度只能用XXpx，而宽度可以是XXpx和百分比吗？

          那什么情况下，只设置width,不设置height？什么情况下只设置高度不设置宽度呢？

create table account(
 id int(8) primary key auto_increment,
 username varchar(20),
 balance double
)
insert into account(username,balance) values('张三',2000),('李四',2000);
select * from account;

start transaction;
  update account set balance=balance-200 where username='张三';
  update account set balance=balance+200 where username='李四';
  rollback

提问：

这种情况在我这个mysql中不需要写commit，我重新打开新的查询连接，值已经发生变化了？

还有就是使用回滚rollback但是值还是修改了？

一个是动态添加，一个是静态添加，动态添加是访问地址，静态添加是复制粘贴，老师不用回答，我这里是自己写点东西