目录1. 引言2. 手写签名核心实现：SignatureView 类3. 交互层实现：MainActivity 类4. 布局与配置5. 性能优化与扩展方向1. 引言
LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to ma
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