文件名称：printf函数源程序a
文件大小：4KB
文件格式：C
更新时间：2014-12-19 10:44:02
printf 源程序
*Purpose: * Prints formatted data on stdout using the format string to * format data and getting as many arguments as called for * Uses temporary buffering to improve efficiency. * _output does the real work here * *Entry: * char *format - format string to control data format/number of arguments * followed by list of arguments, number and type controlled by * format string * *Exit: * returns number of characters printed