是否正确安装了npm？
请检查命令行中的npm

npm

版本应出现

npm <command>

Usage:

npm install        install all the dependencies in your project
npm install <foo>  add the <foo> dependency to your project
npm test           run this project's tests
npm run <foo>      run the script named <foo>
npm <command> -h   quick help on <command>
npm -l             display usage info for all commands
npm help <term>    search for help on <term>
npm help npm       more involved overview

All commands:

    access, adduser, audit, bin, bugs, cache, ci, completion,
    config, dedupe, deprecate, diff, dist-tag, docs, doctor,
    edit, exec, explain, explore, find-dupes, fund, get, help,
    hook, init, install, install-ci-test, install-test, link,
    ll, login, logout, ls, org, outdated, owner, pack, ping,
    pkg, prefix, profile, prune, publish, rebuild, repo,
    restart, root, run-script, search, set, set-script,
    shrinkwrap, star, stars, start, stop, team, test, token,
    uninstall, unpublish, unstar, update, version, view, whoami

Specify configs in the ini-formatted file:
    /Users/peter.lam/.npmrc
or on the command line via: npm <command> --key=value

More configuration info: npm help config
Configuration fields: npm help 7 config

npm@8.11.0 /usr/local/lib/node_modules/npm

很可能您没有用单引号将文件名括起来
根据您的命令，您需要键入：npx create-react-app 'hello-world'这将在名为'trail'的文件夹中创建名为hello-world的react应用程序，如果要在trail文件夹中创建react应用程序，则应给予下面提到的命令'npx create-react-app。'

• 让我们一起来 * 兄弟**

请阅读文档并尝试按照本文档中提供的步骤操作
React Native Create App
1 -安装 NodeJS
2 -使用node -v检查节点版本，如果返回任何版本，则 NodeJS 安装正确
3 -然后尝试通过以下命令创建react js应用程序

npx create-react-app my-app
cd my-app
npm start

这是

npm create react-app <your-app-name>

如果您想使用 typescript 模板，那么

npm create react-app <your-app-name> --template typescript