摘要: 在计算机系统中，数值一律用补码来表示（存储）。 主要原因：使用补码，可以将符号位和其它位统一处理；同时，减法也可按加法来处理。另外，两个用补 码表示的数相加时，如果最高位（符号位）有进位，则进位被舍弃。 补码与原码的转换过程几乎是相同的。 数值的补码表示也分两种情况：.....阅读全文

摘要: Good Programming Practice 1,Read the manuals for the version of C++ you are using. Refer to these manuals frequently to be sure you are aware of the rich collections of C++ features and that you are using them correctly. 2,Your computer and compiler are good teachers. If after reading your C++ language manuals , you still are not sure how a feature of C++ works, experiment using a small "test program" and see what happens. Set your complier options for "maximum warnings". St阅读全文