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一般合約訂單能讓用戶以最佳可用價格下單買入或賣出代幣，而限價單則是以指定價格或更高價格下單買入或賣出代幣。 限價單與一般合約訂單的區別在於，限價單只有在代幣價格達到預設價格時即可執行。

Strategy orders include “Buy dip”, “Take profit”, “Stop loss” orders. You can set a target market cap or a target price as triggers for the strategy. Trading with strategy orders on OKX DEX is fully onchain and doesn’t require the custody of your wallets. When you set a target price, we’ll calculate an exchange rate based on the price’s fiat value and create the order onchain, which will be executed by a smart contract. Trigger price: Your target price and the calculated exchange rate are the only execution triggers. If you’ve set a target market cap, we’ll still create the order based on the corresponding price and exchange rate calculated at the time of your order. Even when there is additional issuance or token burning, your order will still be executed based on those conditions. Onchain transactions use USD as the unit of account. Due to exchange rate fluctuations, if your default currency unit isn’t USD, the trigger price in your order details may slightly differ from that on your trading module. Slippage: Your slippage will affect the range of the exchange rate (calculated based on your target price) that your order can be executed in. The higher the slippage, the larger the range of potential executions. Note that stop loss orders might not entirely adhere to the slippage. Under extreme market conditions, your actual execution price might differ significantly from your target price.

OKX DEX 的限價單無需交易對手方便能正常運行。OKX DEX 透過其去中心化的解算器網絡接收流動性，即自動做市商 (AMM)、DEX 聚合器和私人做市商 (PMM)。一旦解算器能夠找到滿足某限價單條件的執行路徑，OKX DEX 便會執行此訂單。

下達和取消限價單無需任何費用。只有當您的訂單被執行時，才會收取網絡費用。這意味著，直到市場價格能足以支付您的限價和網絡費用之前，您的訂單将不被执行。限價和網絡費用將從您出售的代幣的交易收益中扣除。

原因有以下幾點： 1. 即使市場價格達到了您預設的價位，市場可能沒有足夠的流動性來執行訂單。OKX DEX 目前不支援部分執行的訂單。這意味著，如果沒有足夠的流動性來執行訂單，訂單將不會被執行。 2. OKX DEX 會以略高於您設定的限價執行訂單，並設置 1% 的滑點，以確保訂單能夠成交執行，以此來支付網絡費用。如果市場價格達到您預設的確切價格 (但不比該價格高)，將無法支付訂單的網絡費用，並無法執行該訂單。

下限價單無需支付任何費用。

取消限價單無需支付任何費用。

為了確保您的訂單能夠成功執行，OKX DEX 會以略高於您設定的限價執行訂單，以此來支付網絡費用。同時也將會設置 1% 的滑點，以確保即使市場價格略有波動，訂單也能被執行。當訂單被執行後，滑點緩衝區的剩餘代幣將返回到您的地址。

OKX DEX 的限價單平台目前僅支援 ERC-20 代幣，而 ETH 不屬於 ERC-20 代幣，所以無法直接在該平台上使用 ETH 進行交易。如果想使用限價單對 ETH 進行出售，您可以將 ETH 兌換成 WETH（Wrapped ETH），再使用 WETH 下限價單。