javascript涓嬫媺鑿滃崟鎬庝箞鍒朵綔
浜?閫?浜憏isu鏄鎸佺潃楂樻€т环姣斻€侀珮璐ㄩ噺涓烘洿澶氱敤鎴锋湇鍔＄殑浜戣绠楁彁渚涘晢锛屾彁渚泍isu浜?閫?浜戞湇鍔″櫒銆亂isu浜?閫熶簯涓绘満銆侀珮闃叉湇鍔″櫒銆丆DN銆丏NS绛変骇鍝侊紝杩欎簺浜у搧宸茬粡鍦ㄥ叏鐞冨悇鍦拌繘琛屼簡甯冪偣锛屽寘鎷腑鍥姐€侀娓€侀煩鍥姐€佺編鍥姐€佹棩鏈€佹柊鍔犲潯銆佹娲茬瓑鍦板尯銆?/p>
涓嬫媺鑿滃崟鏄綉绔欏父鐢ㄧ殑涓€绉嶄氦浜掓柟寮忥紝浠ヤ笅鏄娇鐢↗avaScript鍒朵綔涓嬫媺鑿滃崟鐨勬楠わ細
1銆丠TML缁撴瀯
鍦℉TML涓垱寤簎l鍜宭i鍏冪礌锛寀l鍏冪礌涓轰笅鎷夎彍鍗曠殑瀹瑰櫒锛宭i鍏冪礌涓轰笅鎷夎彍鍗曠殑閫夐」銆?/p>
```html
涓嬫媺鑿滃崟鎸夐挳
```
2銆丆SS鏍峰紡
浣跨敤CSS鏍峰紡璁剧疆涓嬫媺鑿滃崟鐨勬牱寮忥紝鍖呮嫭鑿滃崟瀹瑰櫒鐨勪綅缃€佽儗鏅€佽竟妗嗙瓑銆?/p>
```css
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-btn {
background-color: #4CAF50;
color: white;
padding: 10px 24px;
border: none;
cursor: pointer;
}
.dropdown-menu {
display: none;
position: absolute;
z-index: 1;
background-color: #f1f1f1;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.dropdown-menu li {
padding: 12px 16px;
}
.dropdown-menu li a {
color: black;
text-decoration: none;
}
.dropdown-menu li:hover {
background-color: #ddd;
}
```
3銆丣avaScript浠ｇ爜
浣跨敤JavaScript浠ｇ爜瀹炵幇涓嬫媺鑿滃崟鐨勬樉绀哄拰闅愯棌鏁堟灉锛岄€氳繃鎿嶄綔CSS鏍峰紡鏉ュ疄鐜般€?/p>
```javascript
// 鑾峰彇涓嬫媺鑿滃崟鎸夐挳鍜岃彍鍗曞鍣?/p>
var dropdownBtn = document.querySelector(".dropdown-btn");
var dropdownMenu = document.querySelector(".dropdown-menu");
// 鐐瑰嚮鎸夐挳鏄剧ず/闅愯棌涓嬫媺鑿滃崟
dropdownBtn.addEventListener("click", function() {
dropdownMenu.style.display = (dropdownMenu.style.display === "none") ? "block" : "none";
});
// 鐐瑰嚮鑿滃崟澶栭儴闅愯棌涓嬫媺鑿滃崟
window.addEventListener("click", function(event) {
if (!event.target.matches(".dropdown-btn")) {
dropdownMenu.style.display = "none";
}
});
```
浣跨敤浠ヤ笂姝ラ锛屾垜浠氨鍙互鍦ㄧ綉椤典腑鍒朵綔涓€涓畝鍗曠殑涓嬫媺鑿滃崟浜嗐€傞渶瑕佹敞鎰忕殑鏄紝浠ヤ笂浠ｇ爜鍙槸涓€涓畝鍗曠殑绀轰緥锛屽疄闄呭簲鐢ㄤ腑鍙兘闇€瑕佹牴鎹叿浣撻渶姹傝繘琛屼慨鏀瑰拰浼樺寲銆?/p>
