长双精度类型变量输出

Question

长精度类型变量值输出

书上的结果是46.257000，而我是-0.000000

#include<stdio.h>
int main()
{
    long double fLongDouble;
    fLongDouble=46.257;
    printf("%f\n",fLongDouble);
    return 0;
}

Answer 1

输出格式错了，long double 是%Lf

#include<stdio.h>
int main()
{
    long double fLongDouble;
    fLongDouble=46.257;
    printf("%Lf\n",fLongDouble);
    return 0;
}