同步的示例

异常会被立即地抛出，可以使用 try…catch 来处理，也可以允许冒泡。

const fs = require('fs');

try {
  fs.unlinkSync('/tmp/hello');
  console.log('successfully deleted /tmp/hello');
} catch (err) {
  // 处理错误
}

The synchronous form blocks the Node.js event loop and further JavaScript execution until the operation is complete. Exceptions are thrown immediately and can be handled using try…catch, or can be allowed to bubble up.

const fs = require('fs');

try {
  fs.unlinkSync('/tmp/hello');
  console.log('successfully deleted /tmp/hello');
} catch (err) {
  // handle the error
}