# send\_transaction

发送自定义 EIP-155 交易。

## 方法定义

```python
def send_transaction(self, to: Optional[ChecksumAddress] = None, data: HexBytes = HexBytes("0x"), value: Wei = Wei(0), gas_price: Optional[Wei] = None, gas_limit: int = 500000) -> Optional[TransactionReceiptData]
```

## 参数说明

| 参数         | 类型                         | 说明                         |
| ---------- | -------------------------- | -------------------------- |
| to         | Optional\[ChecksumAddress] | 接收者地址,为 None 时表示创建合约       |
| data       | HexBytes                   | 交易数据,默认为空                  |
| value      | Wei                        | 发送的原生代币数量,默认为 0            |
| gas\_price | Optional\[Wei]             | Gas 价格,默认使用链上当前 gas\_price |
| gas\_limit | int                        | Gas 最大使用量,默认为 500000       |

## 返回值

返回 TransactionReceiptData 对象,包含以下字段:

| 字段                  | 类型                           | 说明               |
| ------------------- | ---------------------------- | ---------------- |
| transaction\_hash   | HexBytes                     | 交易哈希             |
| block\_number       | BlockNumber                  | 区块高度             |
| transaction\_index  | int                          | 交易在区块中的索引        |
| transaction\_status | int                          | 交易状态(1 成功,0 失败)  |
| transaction\_type   | int                          | 交易类型             |
| action              | str                          | 交易动作类型           |
| sender              | ChecksumAddress              | 发送者地址            |
| to                  | ChecksumAddress              | 接收者地址            |
| nonce               | Nonce                        | 交易序号             |
| value               | Wei                          | 转账金额             |
| gas\_used           | int                          | 实际使用的 Gas        |
| gas\_limit          | int                          | Gas 上限           |
| gas\_price          | Optional\[Wei]               | Gas 价格           |
| contract\_address   | Optional\[ChecksumAddress]   | 部署的合约地址(仅合约创建交易) |
| logs                | Optional\[List\[LogReceipt]] | 交易日志             |
| input\_data         | HexBytes                     | 交易输入数据           |
| r                   | HexBytes                     | 签名 r 值           |
| s                   | HexBytes                     | 签名 s 值           |
| v                   | HexBytes                     | 签名 v 值           |

## 示例代码

```python
# 发送 ETH
receipt = account.send_transaction(
    to="0x...",
    value=Web3.to_wei(0.1, 'ether')
)
if receipt and receipt.transaction_status:
    print(f"Transaction successful: {receipt.transaction_hash.hex()}")

# 调用合约函数
contract_function_data = HexBytes("0x...")  # 合约函数的编码数据
receipt = account.send_transaction(
    to="0x...",  # 合约地址
    data=contract_function_data,
    gas_limit=100000
)
```


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