React购物车问题：增减商品位置异常及LocalStorage数据丢失

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• Headings: Use number signs (#). The number of signs determines heading level:
  • # Main Heading → # Main Heading
  • ## Subheading → ## Subheading
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  • Second list item with emphasized text
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• Code/Commands: Surround with backticks (`):
  To install React, run npm create vite@latest my-react-app -- --template react
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  "React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes."

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  React Official Documentation
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  React Logo

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内容的提问来源于stack exchange，提问作者Ons Jannet