myHelperIsMe的专栏

1. The concept of Compound Types:A compound type is a type that is defined in terms of another type, C++ has several compound types, two of which---references and pointers.declarations consist o

1.关于 unsigned 的注意事项：1.unsigned int 可以缩写成 unsigned2.当用到char类型时，char 有3种形势，char, signed char 和unsigned char , 当我们写char 时，编译器会从signed char 和unsigned char 中选一种。signed char 是 -127 ~ 127, unsigned cha

Initializers:1.被初始化的变量在create那一瞬间得到值：double price = 109.99, discount = price * 0.6; 这样的定义是合理的。Three ways of initialization:1. int units = 0;2. int units = {0};3. int units{0};4. int