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计时器

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Oocean1225
Last edited Mar 11, 2020
Created on Mar 8, 2020
Forked from JavaScript事件

This example presents a functional digital stopwatch interface built with React. It displays elapsed time in hours, minutes, seconds, and milliseconds within a text input field. Three buttons control the timer: start, stop, and reset. The implementation uses JavaScript's `setInterval` and `clearInterval` to update the display every 50 milliseconds, incrementing time values and handling carry-over between units. The interface is rendered as plain HTML elements with inline event handlers, showing a simple interactive time-tracking tool without external data sources.

AI-generated description

A bare minimum HTML page.

See also React Starter.

MIT Licensed

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