std::cout

Character out

• cout.setf(ios::fixed) (set format)
• ios::dec: sets the basefield format to decimal (base 10).
• ios::hex: sets the basefield format to hexadecimal (base 16).
• ios::oct: sets the basefield format to octal (base 8).
• ios::fixed: sets the floatfield format to fixed-point notation.
• ios::scientific: sets the floatfield format to scientific notation.
• ios::left: sets the adjustfield format to left alignment.
• ios::right: sets the adjustfield format to right alignment.
• ios::internal: sets the adjustfield format to internal alignment.
• ios::showpos: displays the plus sign for positive numbers.
• ios::showbase: displays the base prefix for non-decimal numbers.
• ios::uppercase: displays the uppercase letters for hexadecimal numbers and the exponent in scientific notation.

• cout.precision(2);
• 소수점 자리