ADD file via upload

Payment.java

@@ -0,0 +1,19 @@
+package 支付处理器（LSP）;
+
+
+/**
+ * @author 方初阳
+ * @version 1.0
+ * @created 23-10月-2025 20:42:49
+ */
+public interface Payment {
+
+	public String getPaymentType();
+
+	/**
+	 * 
+	 * @param amount
+	 */
+	public boolean process(amount：double amount);
+
+}