11.1.4 Integral types

11.1.4 Integral types C# supports nine integral types: sbyte, byte, short, ushort, int, uint, long,

11.2 Reference types A reference type is a class type, an interface type, an array type, or a deleg

11.1.5 Floating point types C# supports two floating-point types: float and double. The float and do

11.1.3 Simple types C# provides a set of predefined struct types called the simple types. The simpl

11.1 Value types A value type is either a struct type or an enumeration type. C# provides a set of

Network Working Group M. Murata Request for Comments: 3023 IBM Tokyo Research Laboratory Obsoletes

Network Working Group J. Rosenberg Request for Comments: 3009 dynamicsoft Category: Standards Trac

Network Working Group E.I. Ancona Request for Comments: 42 M.I.T. Lincoln Laboratory 31 March 197

浮点数字，也就是人们知道的实数（real），当计算的表达式有精度要求时被使用。例如，计算平方根，或超出人类经验的计算如正弦和余弦，它们的计算结果的精度要求使用浮点型。Java 实现了标准（IEEE

3. 泛型通配符 首先，下面是一个例子，作用是打印出一个集合中的所有元素，我们首先用老版本jdk1.4的编码规则，代码如下： void printColleciton(Collection c){