通过一个小代码回顾C的打印输出格式

#include<stdio.h>int main(){   float test1=12.3224356546565461-0.1;   int   test2=13;   char  test3[]="This is a test string !";   printf("%03d %+i %-5u %o %x %X\n",test2,test2,test2,test2,test2,test2);   printf("%.3f,%lf ,%e, %E %g %G \n",test1,test1,test1,test1,test1,test1);   printf("%s\n",test3,test3);   return 0;}