2.1.3 字面值常量

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书中页数：P35
代码名称：literals.cc

#include <iostream>
int main() 
{
	std::cout << "Hello World!";  // simple character string literal
	std::cout << "";              // empty character string literal
	// literal using newlines and tabs
	std::cout << "\nCC\toptions\tfile.[cC]\n";

    // multiline string literal
    std::cout << "a really, really long string literal "
	             "that spans two lines" << std::endl;

	// three ways to print a capital M
	std::cout << 'M' << " " << '\115' << " " << '\x4d' << std::endl;

    unsigned long long bigVal = -1ULL;
    std::cout << bigVal << std::endl;

    return 0;
}