文章分类 -  I Remember A Book says …

摘要：A architecture introduction by assembly language. 阅读全文

摘要：每个 C/C++ 程序员都应该买一本! 阅读全文

摘要： 阅读全文

摘要：读者最好能养成按照字符来理解正则表达式的习惯.(p.8) 如果连字符出现在字符组的开头, 他表示的就是一个普通字符, 而不是一个范围. 同样的道理, 问号和点号通常被当作元字符处理, 但在字符组中则不是如此(说明白一点就是, [0-9A-Z_!.?]里面, 真正的特殊字符只有那两个连字符).(p.9) 请记住, 排除行字符组表示"匹配一个未列出的字符(match a character that... 阅读全文

摘要：The range of both int and float depends onthe machine you are using;(p.9) If an arithmetic operator has integer operands, an integer operation is performed. If an arithmetic operator has one floating-point operand nad one integer operand, however, the integer will be converted to floating point bef. 阅读全文