1.關鍵字爲空時匹配
a.匹配出的記錄不能太多，因爲太多就不方便找到需要的數據了。
b.匹配出用戶最可能需要的數據。
2.有關鍵字時匹配
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直播簡介 在這快速變化的時代，無論是何種規模的企業都在關注看重效能，研發效能的變革是許多 IT 公司首先要考慮的，例如研效平臺建設、度量體系建設、數據驅動管理等。藉助新技術、新工具等全面提升軟件工程效能。要達到 10 倍效能，需要利用一切可
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