strlen vs sizeof strlen method is used to find the length of an array whereas sizeof method is used to find the actual size ...

return用来退出当前函数模块。 注意有返回值，即：return (num) 中(num)是某个返回值，则调用函数的时候可以赋值，比如如果返回是int类型可以这样赋值urnum=MyFunction(factor);,如果没有返回值则直接调用该函...

12warning: backslash and newline separated by space int colAndrowArray[3][3]= \ 此类换行错误，删除反斜杠\后面的空格，就不会有waring了。 两种换行方式 添加\...

使用变量和常量 std::cin不要用endl e.g. 下面写法是错误的 1cin >> typeNUmbe >>endl; 以上写法会报错！！！ 在C++中，变量名可包含数字和字母，但不能以数字打头。变量名不能包含空格和...

使用 std::cout 显示一行消息，std::endl 命令cout换行,作用就相当于\n ++i vs i++ ++i will increment the value of i, and then return the increment...

We get to that point, c++, this chapter mainly introduce parts of c++, and understand them with many code example.

Continuity equation: Current density:[1] \[ \boldsymbol{j}=\rho \boldsymbol{v}\quad(1) \] where the direction of \(\boldsymbo...

This note primarily delves into incompressible flow momentum equation and Surface of water waves and boundary condition and Variational Formulation.