...有限作用域实现）析构函数释放内存。当然，智能指针还不止这些，还包括复制时可以修改源对象等。智能指针根据需求不同，设计也不同（写时复制，赋值即释放对象拥有权限、引用计数等，控制权转移等）。auto_ptr 即是一种...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...

...试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about ac...