In C + + format the input and output (formatted and output) detailed

Formatted input and output, is in the <iostream> header file, control format;

If you modify the format of the input and output, will affect the subsequent format, you need to reset, generally in the format type before adding "No", you can;

Support, 8, 16, default 10, and uppercase (uppercase) mode;

Code:

* * * cppprimer.cpp * * Created on:2013.11.28 * author:caroline//*eclipse CDT, gcc 4.8.1*/  
      
#include <iostream> using namespace std; int main () {//control format, output std::cout << "default bool values:" << true << "" << FAL
            SE << "\nalpha bool values:" << std::boolalpha << true << "" << false  
    << Std::endl; Std::cout << "No reset bool:" << true << "" << false << Std::endl; No reset std::cout << std::noboolalpha << "reset bool:" << true << "" << false &LT;&L T Std::endl; base of reset//integer, display, uppercase//More highlights: http://www.bianceng.cnhttp://www.bianceng.cn/Programming/cplus/std::cout  
    << std::showbase; Std::cout << "Default: << <<" "<< 1024 << Std::endl; Default Std::cout << "Octal:" << Oct << << "" << 1024 << Std::endl;  
            8 std::cout << std::uppercase << "hex: << hex << <<" "<< 1024 << Std::nouppercase <<std::endl; 16 Std::cout << "decimal: << dec<< <<" "<< 1024 << Std::endl;  
    10 Std::cout << Std::noshowbase;  
return 0; }

Output:

default bool values:1 0  
Alpha bool values:true false  
No reset bool:true false  
reset bool:1 0  
Defau LT:20 1024  
octal:024 02000  
hex:0x14 0X400 decimal:20  
1024

Author: csdn Blog spike_king