Selenium自动化测试中常见报错类型及解决方案

在论坛系统测试报告-优快云博客和个人博客系统测试报告_系统测试报告模板-优快云博客后，写个错误分析吧

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1. NoSuchElementException - 无法找到元素

错误信息：

Message: no such element: Unable to locate element: {"method":"css selector","selector":"xxx"}

 大部分错误报错的时候都是一长串，像这样

错误发生: Message: no such element: Unable to locate element: {"method":"css selector","selector":"body > div > div > div > div:nth-child(1) > div > div.card.card-md > div > h2"}
  (Session info: MicrosoftEdge=134.0.3124.72)
Stacktrace:
	GetHandleVerifier [0x00007FF725D0A785+20677]
	simdutf::get_active_implementation [0x00007FF725C66F30+492592]
	Microsoft::Applications::Events::EventProperty::to_string [0x00007FF725F5DC3A+1807418]
	(No symbol) [0x00007FF725AA72AC]
	(No symbol) [0x00007FF725AA758B]
	(No symbol) [0x00007FF725AE85A7]
	(No symbol) [0x00007FF725AC849F]
	(No symbol) [0x00007FF725A9D6ED]
	(No symbol) [0x00007FF725AE5D61]
	(No symbol) [0x00007FF725AC81C3]
	(No symbol) [0x00007FF725A9CC36]
	(No symbol) [0x00007FF725A9C0C4]
	(No symbol) [0x00007FF725A9CA63]
	(No symbol) [0x00007FF725B858DD]
	(No symbol) [0x00007FF725B91D42]
	(No symbol) [0x00007FF725B8A703]
	Microsoft::Applications::Events::EventProperty::to_string [0x00007FF725DE478A+262026]
	simdutf::get_active_implementation [0x00007FF725C74661+547681]
	simdutf::get_active_implementation [0x00007FF725C6D914+519700]
	simdutf::get_active_implementation [0x00007FF725C6DA59+520025]
	simdutf::get_active_implementation [0x00007FF725C5F606+461574]
	BaseThreadInitThunk [0x00007FFE0DF97374+20]
	RtlUserThreadStart [0x00007FFE0FC9CC91+33]

注意找哦

原因分析：

• 定位方式错误：元素的 id、class、xpath、css selector 写错

• 元素未加载完成：页面 加载慢，但代码执行太快

• 元素在 iframe 里：未切换到 iframe

解决方案：

• 检查选择器

  print(driver.page_source)  # 打印整个页面源代码，确认元素是否存在
  </