领英建议先出低价，然后优化，找到理想出价。

LinkedIn's advertising best practices generally recommend starting with a competitive bid that aligns with your campaign goals and budget, rather than starting with a low bid and gradually increasing it. Starting too low can lead to your ads not being shown enough, or at all, which makes it difficult to gather meaningful data for optimization. A competitive initial bid helps ensure your ads are seen by your target audience, allowing you to quickly collect performance data and make informed adjustments to optimize for better results, such as conversions or clicks, at an efficient cost.