更新 README，增加 t10

README.md

@@ -1,2 +1,7 @@
 # XJTU-Python
 西交大 Python 相关资源
+### 一些自学可以参考的资源
+
+[菜鸟教程](https://www.runoob.com/python3/python3-tutorial.html)
+
+[GitHub:Python - 100天从新手到大师](https://github.com/jackfrued/Python-100-Days)

homework/2/10.py

@@ -0,0 +1,18 @@
+def run(year):
+    if (year % 400 == 0):
+        return True
+    elif (year % 100 == 0):
+        return False
+    elif (year % 4 == 0):
+        return True
+    else:
+        return False
+
+ms = [0, 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
+
+y, m, d = map(int, input().split())
+ms[2] = 29 if run(y) else 28
+ans = 0
+for i in range(1, m):
+    ans += ms[i]
+print(ans+d)