diff --git a/GA/crossover b/GA/crossover
new file mode 100644
index 0000000..c2fedd1
--- /dev/null
+++ b/GA/crossover
@@ -0,0 +1,10 @@
+function [y1,y2] = crossover(acr_position,x1,x2)
+%交叉
+for i=1:acr_position
+    temp = x1(i);
+    x1(i)=x2(i);
+    x2(i)=temp;
+end
+y1=x1;
+y2=x2;
+end