<button class="truncate-button" title="这里是完整的按钮文本内容">这里是...</button>

<style>
.truncate-button {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100px; /* 根据需要调整 */
}
</style>

<button class="tooltip-button">
  <span class="button-text">这里是过长的按钮文本内容</span>
  <span class="tooltip">这里是过长的按钮文本内容</span>
</button>

<style>
.tooltip-button {
  position: relative;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tooltip-button .tooltip {
  visibility: hidden;
  width: max-content;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
}

.tooltip-button:hover .tooltip {
  visibility: visible;
  opacity: 1;
}
</style>

// 使用jQuery UI工具提示
$(".truncate-button").tooltip();

import React, { useState } from 'react';
import './TooltipButton.css';

function TooltipButton({ text, maxLength = 20 }) {
  const [showTooltip, setShowTooltip] = useState(false);
  
  const displayText = text.length > maxLength 
    ? `${text.substring(0, maxLength)}...` 
    : text;
  
  return (
    <div className="tooltip-container">
      <button
        className="truncated-button"
        onMouseEnter={() => setShowTooltip(true)}
        onMouseLeave={() => setShowTooltip(false)}
      >
        {displayText}
      </button>
      {showTooltip && text.length > maxLength && (
        <div className="tooltip">
          {text}
        </div>
      )}
    </div>
  );
}