commit e3ae16546bfd0d8a9e10c66173c1c5905929b984
Author: caoshd <cao-shd@outlook.com>
Date:   Sun Mar 3 23:14:54 2024 +0800

    新增: 初始化工程

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bff2d76
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.iml
diff --git a/src/000.other_tips.py b/src/000.other_tips.py
new file mode 100644
index 0000000..fb407b2
--- /dev/null
+++ b/src/000.other_tips.py
@@ -0,0 +1,4 @@
+# PASS 占位 保证语法结构
+score = 50
+if score > 80:
+    pass
diff --git a/src/001.hello_world.py b/src/001.hello_world.py
new file mode 100644
index 0000000..157fa46
--- /dev/null
+++ b/src/001.hello_world.py
@@ -0,0 +1,5 @@
+# python 001.hello_world.py
+print("hello world")
+
+print("hello ", end="")
+print("world")
diff --git a/src/002.data_types.py b/src/002.data_types.py
new file mode 100644
index 0000000..ec455d1
--- /dev/null
+++ b/src/002.data_types.py
@@ -0,0 +1,29 @@
+# 数值型
+num = 100
+print(type(num))
+
+pi = 3.14
+print(type(pi))
+
+# 字符串
+str1 = "python"
+print(type(str1))
+
+str2 = 'python'
+print(type(str2))
+
+str3 = '''
+python
+'''
+print(type(str3))
+
+# 布尔型
+is_a = True
+print(type(is_a))
+
+# input 获取输入 获取字符串
+input_str = input("please input num:\n")
+print(type(input_str))
+
+num = int(input_str)
+print(type(num))
diff --git a/src/003.operator_symbol.py b/src/003.operator_symbol.py
new file mode 100644
index 0000000..a77da96
--- /dev/null
+++ b/src/003.operator_symbol.py
@@ -0,0 +1,45 @@
+# 算数运算符
+# + 加
+# - 减
+# * 乘
+# / 除
+num = 5 / 2
+print(num)
+# % 模
+# ** 幂
+# // 取整除
+num = 5 // 2
+print(num)
+
+# 比较运算符
+# == 等于
+print(1 == 2)
+# != 不等于
+print(1 != 2)
+# > 大于
+# < 小于
+# >= 大于等于
+# <= 小于等于
+
+# 赋值运算符
+# = 设置值
+
+# 逻辑运算符
+b1 = True
+b2 = False
+
+# and
+print(b1 and b2)
+
+# or
+print(b1 or b2)
+
+# not
+print(not b2)
+
+# 成员运算符
+# in
+print('y' in 'python')
+
+# not in
+print(2 not in [1, 4, 5])
diff --git a/src/004.process_control.py b/src/004.process_control.py
new file mode 100644
index 0000000..1d75685
--- /dev/null
+++ b/src/004.process_control.py
@@ -0,0 +1,56 @@
+# 条件
+score = 50
+
+# if
+if score < 60:
+    print("不及格")
+
+# if-else
+if score > 60:
+    print("及格")
+else:
+    print("及格")
+
+# if-elif-else
+score_str = input("请输入成绩:\n")
+score = float(score_str)
+if 90 <= score <= 100:
+    print("优")
+elif 80 <= score < 90:
+    print("良")
+elif 60 <= score < 80:
+    print("可")
+elif 0 <= score < 60:
+    print("劣")
+else:
+    print("成绩错误！")
+
+# 循环
+
+# for loop
+# array
+items = [1, 2, 3, 4, 5, 6]
+for item in items:
+    print(item)
+
+# [0,10) step=1
+# for item in range(10):
+for item in range(0, 10):
+    print(item)
+
+# [0,10) step=2
+for item in range(0, 10, 2):
+    print(item)
+
+# while loop
+i = 0
+while i < 100:
+    i += 1
+
+    if i == 5:
+        continue
+    if i == 10:
+        break
+
+    print(i, end=" ")
+
diff --git a/src/005.data_structures.py b/src/005.data_structures.py
new file mode 100644
index 0000000..29fc25c
--- /dev/null
+++ b/src/005.data_structures.py
@@ -0,0 +1,180 @@
+# STRING
+str1 = '  hello World  '
+str2 = "Hello World"
+print(type(str1))
+
+# 长度
+print(len(str1))
+# 拼接
+print(str1 + str2)
+# 首字母大写
+print(str1.title())
+# 全部大写转小写
+print(str1.lower())
+# 全部小写转大写
+print(str1.upper())
+
+# trim
+print(str1.strip())
+# left trim
+print(str1.lstrip())
+# right trim
+print(str1.rstrip())
+
+# RANGE
+range0_10 = range(10)
+print(type(range0_10))
+
+# [0,10) step=1
+for item in range(10):
+    print(item, end=" ")
+print()
+
+for item in range(0, 10):
+    print(item, end=" ")
+print()
+
+# [0,10) step=2
+for item in range(0, 10, 2):
+    print(item, end=" ")
+print()
+
+# LIST
+items1 = [1, 2, 3]
+print(type(items1))
+
+# 从零开始
+print(items1[0])
+# index [0,1)
+print(items1[0:1])
+# 负索引
+print(items1[-1])
+# 追加
+items1.append(4)
+print(items1)
+
+# 生成列表
+items2 = []
+for i in range(1, 11):
+    items2.append(i)
+print(items2)
+
+# 删除 无返回值
+del items2[2]
+print(items2)
+
+# 弹出 有返回值 不传参 = 传参 -1
+print(items2.pop())
+
+print(items2)
+items2.pop(-1)
+print(items2)
+
+items2.pop(0)
+print(items2)
+
+# 排序
+items3 = [1, 3, 5, 4]
+# 改变原始集合
+items3.sort()
+print(items3)
+items3.sort(reverse=True)
+print(items3)
+
+item4 = [1, 3, 5, 4]
+# 不改变原始集合
+print(sorted(item4))
+print(sorted(item4, reverse=True))
+print(item4)
+
+# 统计值出现的次数
+item5 = [1, 3, 1, 2, 8, 2, 2]
+print(item5.count(1))
+print(item5.count(2))
+
+# TUPLE
+items6 = (1, 2, 3, 4, 5)
+print(type(items6))
+print(items6)
+
+# 获取元素
+print(items6[0])
+print(items6[0:3])
+
+# 拼接
+items7 = (6, 7, 8, 9, 10)
+print(items6 + items7)
+
+# SET
+items8 = {1, 2, 2, 3}
+print(type(items8))
+print(items8)
+
+# 新增
+items8.add(4)
+print(items8)
+items8.remove(4)
+print(items8)
+
+items9 = {2, 3, 4}
+
+# 交集
+print(items8 & items9)
+# 并集
+print(items8 | items9)
+
+item10 = set("python")
+print(item10)
+list1 = [1, 2, 3, 4]
+print(list1)
+item10 = set(list1)
+print(item10)
+
+# 字典
+dict1 = {'name': 'zhangsan', 'age': 30}
+print(dict1)
+
+print(dict1.get('name'))
+print(dict1.get('age'))
+
+str_key = 'gender'
+dict1[str_key] = 'male'
+print(dict1)
+
+del dict1[str_key]
+print(dict1)
+
+dict1_items = dict1.items()
+print(dict1_items)
+for dict1_item in dict1_items:
+    print(dict1_item[0])
+    print(dict1_item[1])
+
+for item_key, item_value in dict1_items:
+    print(item_key + ":" + str(item_value))
+
+dict1_keys = dict1.keys()
+print(dict1_keys)
+for item_key in dict1_keys:
+    print(item_key)
+
+dict1_values = dict1.values()
+print(dict1_values)
+for item_value in dict1_values:
+    print(item_value)
+
+# ENUMERATE
+for index, value in enumerate(["zhangsan", "lisi", "wangwu"]):
+    print(str(index) + ":" + value)
+
+# ZIP
+keys = ["name", "age", "city"]
+values = ["name", "age", "city"]
+print(list(zip(keys, values)))
+
+# REVERSED
+for i in reversed(range(10)):
+    print(i, end=" ")
+
+# 列表推导式
+