浮点数后面的0怎么去掉啊？
#include "stdio.h "
int main()
{
int a =5;
double f;
f = 13.0/a;
printf( "%f ",f);
system( "pause ");
}
想得到2.6
但结果是2.6000000

[解决办法]
printf( "%g ",f);