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Date: Wed, 5 Jul 2023 19:48:32 +0800
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---
 README.md                    | 34 ++++++++++++++++++++++++--
 demo/solidity1.sol           | 47 ++++++++++++++++++++++++++++++++++++
 demo/solidity_for_import.sol |  8 ++++++
 3 files changed, 87 insertions(+), 2 deletions(-)
 create mode 100644 demo/solidity1.sol
 create mode 100644 demo/solidity_for_import.sol

diff --git a/README.md b/README.md
index 39b1865..8bfcf5a 100644
--- a/README.md
+++ b/README.md
@@ -204,8 +204,38 @@ personal.listAccounts
   - 谜恋猫: https://www.cryptokitties.co/
   - 百度莱茨, 网易招财猫, 小米加密兔
 
-
-
+## 5. 智能合约编程语言-solidity
+
+- 合约文件的结构
+  - 版本声明
+  - import
+  - 合约
+    - 状态变量
+    - 函数
+    - 结构类型
+    - 事件
+    - 函数修改器
+  - 代码注释
+
+- Solidity 语言的类型
+  - 值类型(Value Type)
+  - 引用类型(Reference Types)
+  - https://docs.soliditylang.org/en/v0.4.23/types.html
+
+
+- 常用值类型
+  - 布尔类型(Booleans)
+    - 取值 true/false
+    - 运算符 ! && || == !=
+  - 整型(Integers)
+    - int/uint
+    - 关键字 unit8 到 uint256(以8步进)
+    - 位运算符 & | ^ ``
+    - 算术运算 + - * / % ** << >>
+      - 右移 等价于 除法去除以2的几次方
+      - 
+  - 字符串常量(String literals)
+  - 地址类型(Address)
 
 
 
diff --git a/demo/solidity1.sol b/demo/solidity1.sol
new file mode 100644
index 0000000..1678c25
--- /dev/null
+++ b/demo/solidity1.sol
@@ -0,0 +1,47 @@
+pragma solidity ^0.4.0;
+
+import "solidity_for_import.sol";
+
+// this is a test Contract
+
+contract Test{
+    // 状态变量定义
+    uint a;
+    bool boola = true;
+    bool boolb = false;
+
+
+
+    // 函数定义
+    function setA(uint x) public {
+        a = x;
+        // 触发事件 -> 可以监听这个事件, 获取到对应的值
+        emit Set_A(x);
+    }
+
+    // 定义事件
+    event Set_A(uint a);
+
+    // 定义结构类型
+    struct Position{
+        int lat;
+        int lng;
+    }
+
+    address public ownerAddr;
+
+    // 函数修改器 - 类似于 python 的装饰器, 可以修改函数的行为
+    modifier owner(){
+        // 在调用 mine 之前先进行校验
+        require(msg.sender == ownerAddr);
+        // mine 的代码会插入到这个位置
+        _;
+    }
+
+    // 只有 owner 才能调用这个函数
+    function mine() public owner {
+
+    }
+
+
+}
\ No newline at end of file
diff --git a/demo/solidity_for_import.sol b/demo/solidity_for_import.sol
new file mode 100644
index 0000000..db642cc
--- /dev/null
+++ b/demo/solidity_for_import.sol
@@ -0,0 +1,8 @@
+pragma solidity ^0.4.0;
+
+
+// this is a ForImport Contract
+
+contract ForImport{
+
+}
\ No newline at end of file