# 编写并发布一个智能合约到Aptos

确保已经搭建好了开发环境，参考：

[MacOS下搭建Aptos开发环境](/aptos/smart-contract/setup-dev-environment-for-aptos-under-macos.md)

### 新建项目文件夹并初始化

```bash
mkdir fist-aptos-module
cd first-aptos-module
aptos move init --name first-aptos-module
```

执行命令之后会生成如下文件：

![](/files/VVS8ennXDqbtxWqwiTkw)

### 编写合约代码

在`sources/`文件夹下面新建`first_aptos_module.move`文件，并写入以下内容：

```rust
module myAccount::first_aptos_module {
  struct Coin has key {
    value: u64
  }

  public fun mint(account: signer, value: u64) {
    move_to(&account, Coin { value })
  }
}
```

在项目根目录下运行：

```bash
aptos move compile
```

此时应该会报一个错误，提示 myAccount没有赋值。

```
 module myAccount::first_aptos_module {
  │        ^^^^^^^^^ address 'myAccount' is not assigned a value. Try assigning it a value when calling the compiler

{
  "Error": "Move compilation failed: Compilation error"
}
```

### 配置toml文件

要解决上面的问题，需要打开Move.toml文件，做如下修改：

![](/files/lWoOlPgpMZqy2nqHI6uG)

增加一个地址申明：

<pre class="language-toml"><code class="lang-toml"><strong>...
</strong><strong>[addresses]
</strong>myAccount = "0x190d44266241744264b964a37b8f09863167a12d3e70cda39376cfb4e3561e12"
</code></pre>

地址用这个命令可以获取：

```bash
aptos config show-profiles
```

修改之后，再次在根目录运行编译命令：

```
aptos move compile
```

不出意外，这次就能够编译成功，项目下会多出一个`build`文件夹。

### 发布合约到Aptos 开发网

发布的命令如下：

```bash
aptos move publish
```

运行之后，会提示一个选择，输入yes即可，成功后类似如下信息：

```json
{
  "Result": {
    "transaction_hash": "0x9ad3086bdc80a5a15693f0daf60ac2f84ddbad265fdf4a477b294a0df6b32bb4",
    "gas_used": 6737,
    "gas_unit_price": 100,
    "sender": "f93b5398790d84139b1bd3f3f55ab3ab2bc44752c0d61b15c6d557beaf6e69e2",
    "sequence_number": 0,
    "success": true,
    "timestamp_us": 1667389889957695,
    "version": 26294938,
    "vm_status": "Executed successfully"
  }
}
```

### 发布合约到Aptos 主网

之前我们的配置都是默认在开发网下面进行。

接下来首先你需要创建一个Aptos钱包，充值一定数量的$APT到账户，然后拷贝出private key。

准备好主网账户之后，在项目根目录运行下面的命令：

```bash
aptos config init --profile mainnetAccount
```

第一个问题输入 **mainnet**:

```bash
Choose network from [devnet, testnet, mainnet, local, custom | defaults to devnet]
mainnet
```

第二个问题粘贴主网账户的私钥：

```bash
Enter your private key as a hex literal (0x...) [Current: None | No input: Generate new key (or keep one if present
```

账户初始化成功后，用主网账户发布合约步骤：

1. 修改Move.toml中的账户地址
2. 运行发布命令

```bash
# 这里指明用 主网账户进行发布
aptos move publish --profile mainnetAccount
```

到这里，已经成功在Aptos主网上发布了你的模块。


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