# 合约

## 部署交易

1. 选择部署合约的账户，点击账户【部署调用】按键进入合约界面。
2. 输入合约代码字节码，接收地址留空，输入账户密码。
3. 预估交易费，点击【部署】，等待交易完成。

## 调用合约

1. 选择部署合约的账户，点击账户【部署调用】按键进入合约界面。
2. 输入合约方法字节码，接收地址输入合约地址，输入账户密码。
3. 预估交易费，点击【调用】，等待交易完成。

## 查看合约

1. 选择与合约同片账户，点击账户【查看合约】显示查看合约面板。
2. 输入合约方法字节码，合约地址。
3. 点击【放大键】，看result返回的结果。

## 字节码

参考开发文档中的合约使用流程如何使用Remix生成部署、调用、查看的字节码。

## 预估交易费

如果点击合约字节码，再点击别处交易费会根据字节码框内内容更新。因此，如果用户先输入字节码，再输入密码，预估的交易费上限的更新就会自动完成，不需要额外的动作。


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