PS C:\Users\c\Desktop\Weather\src> npm run start > @ start C:\Users\c\Desktop\Weather > node main.js (node:2204) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension. (Use `node --trace-warnings ...` to show where the warning was created) C:\Users\c\Desktop\Weather\main.js:1 import App from './App' ^^^^^^ SyntaxError: Cannot use import statement outside a module at wrapSafe (internal/modules/cjs/loader.js:1029:16) at Module._compile (internal/modules/cjs/loader.js:1078:27) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1143:10) at Module.load (internal/modules/cjs/loader.js:979:32) at Function.Module._load (internal/modules/cjs/loader.js:819:12) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:75:12) at internal/main/run_main_module.js:17:47 npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! @ start: `node main.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the @ start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\c\AppData\Roaming\npm-cache\_logs\2023-06-12T01_23_57_876Z-debug.log PS C:\Users\c\Desktop\Weather\src>

这段代码的问题在于它使用了ES模块的import语法，而不是CommonJS模块的require语法。你需要在package.json文件中将"type"属性设置为"module"，或者将文件扩展名改为.mjs来解决这个问题。另外，从日志中可以看到这段代码在执行时遇到了错误，导致程序退出。你可以查看日志文件来获取更多的错误信息。