# 止蝕當開倉（買入一種幣）時，止蝕單可以幫你保護下跌風險，並在市場對你不利時限制損失。止蝕單會以你願意承受的最大損失百分比退出你的倉位（賣出該幣）。你只需要在設定中輸入該百分比即可。要為訂單新增止蝕，喺換倉設定表格入面撳「+SL」：

喺「止蝕」欄位輸入你願意承受嘅最大損失百分比 — 然後就完成設定：

當你嘅主要訂單成交後，我哋會自動開一個止蝕單去賣出你實際收到嘅相同數量嘅幣，並會根據你主要訂單嘅實際成交價同你設定嘅止蝕百分比計算止蝕觸發位：

你可以見到我喺 Base 以 0.000010770 ETH 買入 1 DEGEN，系統就設定咗一個止蝕單喺低 5% 嘅價位賣出 1 DEGEN（即 0.000010231 ETH）。如果市況對我不利，價格跌到我嘅止蝕目標，止蝕就會被觸發，換倉會被送去交易所執行。 *** 你可以將止蝕連接到任何訂單：換倉（Swap）、限價（Limit）或追蹤止蝕（Trailing）。你可以將止蝕百分比設定喺 0.1% 到 99.9% 之間。你可以選擇只將止蝕連接到你嘅主要訂單 — 如果你願意畀個幣繼續跑番高，未決定何時取利，但想保護下方風險。或者，如果你知道自己想要嘅盈利幅度，你亦可以連接一個 [止賺](/goodcryptox-yue/dex-jiao-yi-xian-huo/shou-dong-ding-dan/zhi-ying.md) 訂單 — 將佢做成一個 [止盈 + 止蝕組合](/goodcryptox-yue/dex-jiao-yi-xian-huo/shou-dong-ding-dan/zhi-ying-+-zhi-shi-zu-he.md). *** 即將推出：追蹤止蝕、將止蝕移至保本、主要訂單嘅已實現及未實現盈虧計算。 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.goodcrypto.app/goodcryptox-yue/dex-jiao-yi-xian-huo/shou-dong-ding-dan/zhi-shi.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.