Basic Characters

基本符号: 不包含运算符和判断符/“basic”嘛:）

part of the C++ program code

Special Characters

Character	Name	Meaning
//	Double slash	Beginning of a comment
#	Pound sign	Beginning of preprocessor directive
<>	Open/close brackets	Enclose filename in #include
()	Open/close parentheses	Used when naming a function
{}	Open/close brace	Encloses a group of statement
""	Open/close quotation marks	Encloses string of character
;	Semicolon	End of a programming statement

输出与换行(cout, endl, \n)

cout << "Howdy!"; //Howdy

cout << "Howdy" << "Aggies!"; //Howdy Aggies!
cout << "Howdy Aggies!"; //Howdy Aggies!

cout << "Programming is" << endl; //Programming is \n fun!
cout << "fun!";

cout << "Programming is\n"; //Programming is \n fun!
cout << "fun!";
​

The #include Directive

• Insert the contents of another file into the program

• This is a preprocessor directive, not part of C++ language

• #include lines not seen by the compiler

• Do NOT place a semicolon at end of #include line