逐步完成前后端服务器

frontend/node_modules/zrender/lib/graphic/LinearGradient.js

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+import { __extends } from "tslib";
+import Gradient from './Gradient.js';
+var LinearGradient = (function (_super) {
+    __extends(LinearGradient, _super);
+    function LinearGradient(x, y, x2, y2, colorStops, globalCoord) {
+        var _this = _super.call(this, colorStops) || this;
+        _this.x = x == null ? 0 : x;
+        _this.y = y == null ? 0 : y;
+        _this.x2 = x2 == null ? 1 : x2;
+        _this.y2 = y2 == null ? 0 : y2;
+        _this.type = 'linear';
+        _this.global = globalCoord || false;
+        return _this;
+    }
+    return LinearGradient;
+}(Gradient));
+export default LinearGradient;
+;