<input style="background: #f8f8f8; border-radius: 2px; padding: 3px 6px; font: 1em monospace; border: 1px solid rgba(0, 0, 0, 0.16); width: " value="" readonly><button onclick="this.previousSibling.select(); document.execCommand('copy')" style="background: #ddd">复制</button>