feat: python

2026-05-06 11:21:42 +08:00
commit 0abf1ad3c4
62 changed files with 7598 additions and 0 deletions
@@ -0,0 +1,36 @@
+obj_x = [10, 20]
+obj_y = [10, 20]
+print(obj_x == obj_y)  # True 比较内容
+print(obj_x is obj_y)  # False 比较内存地址
+
+
+# 定义一个列表，并让另一个变量引用它
+obj_p = [30, 40]
+obj_q = obj_p  # obj_q 引用了 obj_p 所指向的同一个对象
+print(obj_p == obj_q)  # True 比较内容
+print(obj_p is obj_q)  # True 比较内存地址
+
+
+# is not None 判断一个变量是否为None
+my_variable = None
+
+if my_variable is not None:
+    # 如果 my_variable 不是 None，则打印此消息
+    print("Variable is not None")
+else:
+    # 如果 my_variable 是 None，则打印此消息
+    print("Variable is None")
+
+#  错误示范：使用 != None 进行比较
+# if my_variable != None:
+# 如果 my_variable 不等于 None，则打印此消息
+# print("Variable is not None (using != None)")
+
+
+sum = 0
+for i in range(5):
+    if i == 2:
+        continue
+    sum += i
+
+print(sum)