#include <stdio.h>
int main (void)
{
    signed char a=120;
    short b=3000;
    int c=500000;
    long d=500000L;
    long long e=1234567891LL;
   
    unsigned char f=20U;
    unsigned short g=6000U;
    unsigned int h=20000U;
    unsigned long i=600000UL;
    unsigned long long j=555555ULL;

    printf("a=%d\nb=%d\nc=%d\nd=%d\ne=%d\n\nf=%u\ng=%u\nh=%u\ni=%u\nj=%u\n.",a,b,c,d,e,f,g,h,i,j);
    return 0;
}

运行后显示的输出结果是：
a=120
b=3000
c=500000
d=500000
e=1234567891
前面的整型变量都没出错 可是后面的无符号整型变量就开始有问题了。。

f=0
g=20
h=6000
i=20000
j=600000

这是怎么回事，是我用错了格式符吗？还是怎样的？菜鸟求助大神指点！

#include <stdio.h>
int main (void)
{
    signed char a=120;
    short b=3000;
    int c=500000;
    long d=500000L;
   // long long e=1234567891LL;
   
    unsigned char f=20U;
    unsigned short g=6000U;
    unsigned int h=20000U;
    unsigned long i=600000UL;
    unsigned long long j=555555ULL;

    printf("a=%d\nb=%d\nc=%d\nd=%d\n\nf=%u\ng=%u\nh=%u\ni=%u\nj=%u\n.",a,b,c,d,f,g,h,i,j);
   // printf("a=%d\nb=%d\nc=%d\nd=%d\ne=%d\n\nf=%u\ng=%u\nh=%u\ni=%u\nj=%u\n.",a,b,c,d,e,f,g,h,i,j);
    return 0;
}

你试下看看运行结果

改为e=%lld
#include <stdio.h>
int main (void)
{
    signed char a=120;
    short b=3000;
    int c=500000;
    long d=500000L;
    long long e=1234567891LL;
   
    unsigned char f=20U;
    unsigned short g=6000U;
    unsigned int h=20000U;
    unsigned long i=600000UL;
    unsigned long long j=555555ULL;

    printf("a=%d\nb=%d\nc=%d\nd=%d\ne=%lld\n\nf=%u\ng=%u\nh=%u\ni=%u\nj=%u\n.",a,b,c,d,e,f,g,h,i,j);//e=%lld
    return 0;
}

你想大家怎么凌辱你才满意？

什么什么

看一下C primer plus中文第四版P81  程序清单4.12   参数传递

那里解释得清楚

[ 本帖最后由 bianchengljy 于 2012-10-10 12:56 编辑 ]