diff --git a/src/SysYIRGenerator.cpp b/src/SysYIRGenerator.cpp
index ba25144..eb21a1a 100644
--- a/src/SysYIRGenerator.cpp
+++ b/src/SysYIRGenerator.cpp
@@ -146,7 +146,11 @@ std::any SysYIRGenerator::visitGlobalVarDecl(SysYParser::GlobalVarDeclContext *c
       delete root;
     }
     // 创建全局变量，并更新符号表
-    module->createGlobalValue(name, Type::getPointerType(type), dims, values);
+    Type* variableType = type;
+    if (!dims.empty()) { // 如果有维度，说明是数组
+        variableType = buildArrayType(type, dims); // 构建完整的 ArrayType
+    }
+    module->createGlobalValue(name, Type::getPointerType(variableType), dims, values);
   }
   return std::any();
 }
@@ -193,7 +197,7 @@ std::any SysYIRGenerator::visitVarDecl(SysYParser::VarDeclContext *ctx) {
     // 对于数组，alloca 的类型将是指针指向数组类型，例如 `int[2][3]*`
     // 对于标量，alloca 的类型将是指针指向标量类型，例如 `int*`
     AllocaInst* alloca =
-        builder.createAllocaInst(Type::getPointerType(type), dims, name);
+        builder.createAllocaInst(Type::getPointerType(variableType), dims, name);
 
     if (varDef->initVal() != nullptr) {
       ValueCounter values;
@@ -1232,6 +1236,7 @@ auto SysYIRGenerator::visitLOrExp(SysYParser::LOrExpContext *ctx) -> std::any {
   return std::any();
 }
 
+// attention : 这里的type是数组元素的type
 void Utils::tree2Array(Type *type, ArrayValueTree *root,
                         const std::vector<Value *> &dims, unsigned numDims,
                         ValueCounter &result, IRBuilder *builder) {