> For the complete documentation index, see [llms.txt](https://cook-protocol.gitbook.io/chinese/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cook-protocol.gitbook.io/chinese/fund-selectors/buy-sell-funds.md).

# 买入/卖出基金

在本节中，我们将演示作为投资者将如何买入和卖出指数代币。

![](/files/-McSbUrbde-P4FXtLKrh)

首先，您需要点击“兑换”按钮。

![](/files/-McSbY0NH769AGREFfmz)

此时会弹出一个对话框。您可在对话框中输入您希望兑换代币的数量。从WETH到CLI表示您希望用WETH购买CLI。点击向下的箭头可切换买入/卖出的代币。从CLI到WETH表示您希望通过出售CLI来购买WETH。

![](/files/-McSbdyTkyfYgtIxReoi)

一旦您决定了希望出售的代币数量，在对话框中第一行空白处输入数据，可兑换的代币数量就会显示在第二行。

![](/files/-McSbuglqct6H1feREmm)

“兑换”按钮下方显示了您将收到的预估代币数量。由于交易滑点和Gas费的存在，您实际收到的代币数量可能会有所不同。

![](/files/-McSbrdBf_jggpQ_Ctna)

点击“兑换”按钮后，MetaMask钱包将显示Gas费的具体金额，并请求扣费许可。

![](/files/-McSc9gDh1WPgxcW4ftt)

在MetaMask上点击确认后，便会进入交易过程。下图展示了交易正在进行中的状态：

![](/files/-McScDImEH2FJF1c1OkI)

交易成功后，您可以再次打开钱包进行验证，确保余额准确。

## 买入/卖出和发行/赎回的区别

有两种方式可以获得指数代币：一种是在去中心化交易所上进行兑换，第二种是使用标的代币发行指数代币。兑换的Gas费较少，也更为便捷，是首要选择。但是如果您已经拥有了所有标的代币，您也可以选择自行发布指数代币。


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