diff --git a/src/mathpuzzle/service/JuniorHighGenerator.java b/src/mathpuzzle/service/JuniorHighGenerator.java
index 7ebb330..8665ab0 100644
--- a/src/mathpuzzle/service/JuniorHighGenerator.java
+++ b/src/mathpuzzle/service/JuniorHighGenerator.java
@@ -25,9 +25,8 @@ public class JuniorHighGenerator implements QuestionGenerator {
     private String generateSingleQuestion() {
         List<String> parts = new ArrayList<>();
         int operandCount = random.nextInt(4) + 2;
-
-       parts = generateBase(operandCount, parts);
-        // 检测一下下面的循环是否加入了高级运算符，如果没有就启动保底
+        parts = generateBase(operandCount, parts);
+        // hasAdvancedOp用以检测下面的循环是否加入了高级运算符，如果没有就启动保底
         boolean hasAdvancedOp = false;
         if (operandCount > 2 && random.nextBoolean()) {
             // 遍历查找左括号的合理位置
@@ -36,47 +35,18 @@ public class JuniorHighGenerator implements QuestionGenerator {
                 if (isNumeric(parts.get(i)) && random.nextBoolean()) {
                     // 随机数看取出来的是不是开根号运算符
                     if("开根号".equals(ADVANCED_OPS[random.nextInt(ADVANCED_OPS.length)])) {
-                        if(random.nextBoolean()) {
-                            parts.set(i, "开根号(" + parts.get(i) + ")");
-                        }
-                        else {
-                            parts.set(i, "开根号(" + parts.get(i));
-                            // 为避免随机数上限出现0，此处要单独判断一下左括号正好括住倒数第二个操作数的情况
-                            if (i == parts.size() - 3) {
-                                parts.set(parts.size() - 1, parts.get(parts.size() - 1) + ")");
-                            } else {
-                                while(true) {
-                                    int i2 = random.nextInt(parts.size() - 3 - i) + 2;
-                                    if(isNumeric(parts.get(i + i2))) {
-                                        parts.set(i + i2, parts.get(i + i2) + ")");
-                                        break;
-                                    }
-                                }
-                            }
-                        }
+                        parts = generateRoot(parts, i);
                     }
                     // 如果不是开根号就是平方运算
                     else {
-                        parts.set(i, "(" + parts.get(i));
-                        // 为避免随机数上限出现0，此处要单独判断一下左括号正好括住倒数第二个操作数的情况
-                        if (i == parts.size() - 3) {
-                            parts.set(parts.size() - 1, parts.get(parts.size() - 1) + ")");
-                        } else {
-                            while(true) {
-                                int i2 = random.nextInt(parts.size() - 3 - i) + 2;
-                                if(isNumeric(parts.get(i + i2))) {
-                                    parts.set(i + i2, parts.get(i + i2) + ")平方");
-                                    break;
-                                }
-                            }
-                        }
+                        parts = generateSquare(parts, i);
                     }
                     hasAdvancedOp = true;
                     break;
                 }
             }
         }
-        // 强制加入一个高级运算符
+        // 启动保底强制加入一个高级运算符
         if(!hasAdvancedOp) {
             parts = forceAddAdvancedOp(parts);
         }
@@ -104,4 +74,42 @@ public class JuniorHighGenerator implements QuestionGenerator {
         }
         return parts;
     }
+
+    public List<String> generateRoot(List<String> parts, int i) {
+        if(random.nextBoolean()) {
+            parts.set(i, "开根号(" + parts.get(i) + ")");
+        } else {
+            parts.set(i, "开根号(" + parts.get(i));
+            // 为避免随机数上限出现0，此处要单独判断一下左括号正好括住倒数第二个操作数的情况
+            if (i == parts.size() - 3) {
+                parts.set(parts.size() - 1, parts.get(parts.size() - 1) + ")");
+            } else {
+                while(true) {
+                    int i2 = random.nextInt(parts.size() - 3 - i) + 2;
+                    if(isNumeric(parts.get(i + i2))) {
+                        parts.set(i + i2, parts.get(i + i2) + ")");
+                        break;
+                    }
+                }
+            }
+        }
+        return parts;
+    }
+
+    public List<String> generateSquare(List<String> parts, int i) {
+        parts.set(i, "(" + parts.get(i));
+        // 为避免随机数上限出现0，此处要单独判断一下左括号正好括住倒数第二个操作数的情况
+        if (i == parts.size() - 3) {
+            parts.set(parts.size() - 1, parts.get(parts.size() - 1) + ")");
+        } else {
+            while(true) {
+                int i2 = random.nextInt(parts.size() - 3 - i) + 2;
+                if(isNumeric(parts.get(i + i2))) {
+                    parts.set(i + i2, parts.get(i + i2) + ")平方");
+                    break;
+                }
+            }
+        }
+        return parts;
+    }
 }