init

ruoyi-cai/src/main/java/com/ruoyi/cai/util/RandomSjUtil.java

@@ -0,0 +1,16 @@
+package com.ruoyi.cai.util;
+
+
+import cn.hutool.core.util.RandomUtil;
+
+public class RandomSjUtil {
+
+    public static boolean rateSj(Integer rate){
+        if(rate == null || rate < 0 | rate > 1000){
+            return true;
+        }
+        int random = RandomUtil.randomInt(1001);
+        return rate > random;
+    }
+
+}