diff --git a/README.md b/README.md
index cfab4d4..03ab318 100644
--- a/README.md
+++ b/README.md
@@ -32,3 +32,29 @@ special
 2.通过用户借阅图书推测出用户喜好并推荐图书
 3.统计每种图书的借阅数量供下次买书参考
 4.是否需要对用户等级进行分类，比如借数超过50本还书时间限制延长一个周
+
+from numpy import linalg
+import numpy as np
+def student(input_data):
+    '''
+    将输入数据筛选性别为男，再进行线性方程求解
+    :param input_data:类型为`list`的输入数据
+    :return:类型为`ndarray`
+    '''
+    result=[]
+    # ********* Begin *********#
+    try:
+        a=np.array(input_data)
+        d=[]
+        b1 = [int(row[1]) for row in a if row[0]=="男"]
+        b2 = [int(row[2]) for row in a if row[0]=="男"]
+        c = [int(row[-1]) for row in a if row[0]=="男"]
+        b=np.vstack((b1,b2))
+        b=b.transpose()
+        d=np.linalg.solve(b,c)
+        d=d.reshape(2,1)
+        # ********* End *********#
+        return d
+    except:
+        return []
+