02

Size: px

Start display at page:

Download "02"

锥陈
4 years ago
Views:

1 Thinking in C++: Volume One: Introduction to Standard C++, Second Edition & Volume Two: Practical Programming C++ C C++ C C C class C++ C++ C++ C++ string vector 2.1 interpreter compiler BASIC BASICPython Python Python

2 C linker sep library source-level debugger in-memory compilation RAM C/C++ preprocessor C++ A+B A + B global optimizer code generator,.o.obj peephole optimizer object Python

3 40 1 C++ object goal linker librarian type checking static type checking Java dynamic type checking C++ C++ C++ C C C/C++ C C++ function argument return value C C++ declaration declaration definition C/C++

4 41 : C C++ ODR one-definition rule, int x C/C++ func1( ) C/C++ int int C/C++ a func1( ) C/C++ func1( ) a func1( ) C C++C C func1( )

5 42 1 C X a a C/C++ extern extern extern func1( ) extern C extern extern

6 43 C C C/C++ header file.h headerfile.h.hxx.hpp #include #include#include C++ include iostream iostream include include C++ include C++ 8 iostream.h C.h C++

7 44 1 C++ c : C C++.h o C++ C ) 2) 3) C/C C C++

8 bug C C/C++ C/C++ C++ iostream <iostream> C C++ C C C++ C++ C C++ POSIX POSIX UNIX C++ UNIX Linux POSIX DOS/Windows POSIX POSIX 2.3 C++ C++ iostream iostream iostream iostream iostream cout 45 Perl Python

9 46 1 C++ << C C++ iostream << howdy! cout cout console output C C++ namespace C++ using C++ ( standard ) using std using using <iostream>.h, <iostream.h>

10 47.h using C/C++ main( ) C++ C++ main( ) in C/C++ C++ C/* */C++ C //// /* */ // Hello, World! <<cout endl C stringc++ string

11 48 1 C++ character array ASCII 0 \ \n C \t ( ) \\ \b ( ) coutcout << cout /:~ CO2 Hello.cpp GNU C++ Internet 2.4 iostream

12 49 cast, char ( char ) ASC char(27) escape cout C character array concatenation C/C cin console input cin cin >>

13 50 1 C Unix DOS shell C system( ) C/C++ system( ) <cstdlib> system( ) C++ C C C C++ C C++string C C string string string C++ <string> stringstd using string

14 s1 s2 s3 s4 string string = string = string string + + string string string += string cout stringstring s1+s2+"!" 2.6 C C++ iostream C <fstream> <fstream> <iostream> cin cout <iostream> ifstream cin ofstreamcout iostream iostream getline( ) string getline( ) ifstream stream string ifstream ofstream while while 51 getline( ) 2 iostreams

15 52 1 C++ while getline(in,s) true while getline( ) true false while getline( ) getline( ) string string string string 2.7 vector string string string string string string C++ container C++ C++ STL, Standard Template 1994 Library Alex Stepanov San Diego C++ C++ Alex Stepanov

16 C++ STL C++ SGI ( STL SGI STL C++ C++ STL C++ SGI STL C++ STL C++ 2 vector vector 2 vector vector C++ vector template Shape vector Cat vector String vector, vector string vector vector<string> stri vectorvector vector vector push_back( ) (. ) push_back( ) put insert( ) 2 push_front( ) ( vector) vector vector C++ push_back( ) vector vector vector indexing n 5 a[4]0 << >> iostreams vector [ ] vector vector vector <vector> 53

17 54 1 C++ string string vector v whilev whilefor while for while for int i=0 i 0 i vector v size( ) C/C++ i 1i++ i 1 i for i 0 vector 1i cout i cout endl iostreams>>

18 55 false vector vector<int> vector vector vector vector 2.8 C++ string vector 2

19 56 1 C++ C C Thinking in C++ Annotated Solution Guide Hello.cpp 2-2 Stream2.cpp Numconv.cpp * string== 2-5 Fillvector.cpp 2-6 Fillvector.cpp vector vector<float> for 25 vector 2-9 vector<float> 8 for vector vector 2-10 vector<float> 25 vectorvector

C/C++程序设计 - 字符串与格式化输入/输出

C/C++程序设计 - 字符串与格式化输入/输出 C/C++ / Table of contents 1. 2. 3. 4. 1 i # include # include // density of human body : 1. 04 e3 kg / m ^3 # define DENSITY 1. 04 e3 int main ( void ) { float weight, volume ; int