diff --git a/2.cpp b/2.cpp
new file mode 100644
index 0000000..8b17ed8
--- /dev/null
+++ b/2.cpp
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctime>
+#include <arm_neon.h>
+#define SIZE 1024
+
+void vector_add_optimized(float* A, float* B, float* C, int size){
+    for(int i=0;i<size;i+=4){
+    	float32x4_t vecA=vld1q_f32(&A[i]);
+    	float32x4_t vecB=vld1q_f32(&B[i]);
+    	float32x4_t vecC=vaddq_f32(vecA,vecB);
+        vst1q_f32(&C[i],vecC);
+    }   
+}
+
+int main(){
+    float A[SIZE],B[SIZE],C[SIZE];
+
+    //初始化 
+    srand(time(NULL));
+    for(int i=0;i<SIZE;i++){
+        A[i]=rand()%100;
+        B[i]=rand()%100;
+    }
+        
+    //计时并输出 
+    clock_t start=clock();
+    vector_add_optimized(A,B,C,SIZE); 
+    clock_t end=clock();
+    printf("优化向量加法时间：%f秒\n",(double)(end-start)/CLOCKS_PER_SEC); 
+     
+    return 0;
+}
+