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config/js/loading.js

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+//Loading页面
+document.onreadystatechange = function () {
+    if (document.readyState == "complete") {
+        loadingFade();
+    }
+}
+
+function loadingFade() {
+    var opacity = 1;
+    var fadeSpeed = 0.05; // 渐变速度
+    var loadingBackground = document.getElementById('loading_bg');
+    var loadingBox = document.getElementById('loading');
+
+    if (!loadingBackground || !loadingBox) {
+        return;
+    }
+
+    function fade() {
+        if (opacity <= 0) {
+            $('#loading').remove();
+            return;
+        }
+
+        loadingBackground.style.opacity = opacity;
+        loadingBox.style.opacity = opacity;
+        opacity -= fadeSpeed;
+        requestAnimationFrame(fade); // 使用requestAnimationFrame来提高动画性能
+    }
+
+    fade();
+}