This approach would eliminate the need to cast in the above code, but it would not fix the bug.
这种方法可除去上面代码中类型强制转换的需要，但不修正错误。
2
The dual approach of studying the code and using debugging tools is the best way to identify and fix problems.
结合研究代码和使用调试工具这两种方法是识别和修正问题的最佳方案。
3
This approach is also more manageable, because it makes it possible for you to immediately analyze, fix, and verify those failed test cases in time for the next scheduled build.