#include<stdio.h>
void main()
{
    float s;
    int x;
    printf("此程序可以实现大小写的转换\n请输入阿拉伯数字:");
    scanf("%d\n",&s);
    x=s*100/10000000000;
    if(x==0)
    {
        x=s*100/1000000000;
        if(x==0)
        {
            x=s*100/100000000;
            if(x==0)
            {
                x=s*100/10000000;
                if(x==0)
                {
                    x=s*100/1000000;
                    if(x==0)
                    {
                        x=s*100/100000;
                        if(x==0)
                        {
                        x=s*100/10000;
                        if(x==0)
                        {
                            x=s*100/1000;
                            if(x==0)
                            {
                                x=s*100/100;
                                if(x==0)
                                {
                                    x=s*100/10;
                                    if(x==0)
                                    {
                                        x=s*100/1;
                                            if(x==0)
                                            {
                                                printf(" ");
                                            }
                                            else
                                            {
                                                if(x==1)
                                                    printf("壹分");
                                                if(x==2)
                                                    printf("贰分");
                                                if(x==3)
                                                    printf("叁分");
                                                if(x==4)
                                                    printf("肆分");
                                                if(x==5)
                                                    printf("伍分");
                                                if(x==6)
                                                    printf("陆分");
                                                if(x==7)
                                                    printf("柒分");
                                                if(x==8)
                                                    printf("捌分");
                                                if(x==9)
                                                    printf("玖分");
                                            }
                                    }
                                    else
                                    {
                                        if(x==1)
                                            printf("壹角");
                                        if(x==2)
                                            printf("贰角");
                                        if(x==3)
                                            printf("叁角");
                                        if(x==4)
                                            printf("肆角");
                                        if(x==5)
                                            printf("伍角");
                                        if(x==6)
                                            printf("陆角");
                                        if(x==7)
                                            printf("柒角");
                                        if(x==8)
                                            printf("捌角");
                                        if(x==9)
                                            printf("玖角");
                                    }
                                }
                                else
                                {
                                    if(x==1)
                                        printf("壹元");
                                    if(x==2)
                                        printf("贰元");
                                    if(x==3)
                                        printf("叁元");
                                    if(x==4)
                                        printf("肆元");
                                    if(x==5)
                                        printf("伍元");
                                    if(x==6)
                                        printf("陆元");
                                    if(x==7)
                                        printf("柒元");
                                    if(x==8)
                                        printf("捌元");
                                    if(x==9)
                                        printf("玖元");
                                }
                            }
                            if(x==1)
                                printf("壹佰");
                            if(x==2)
                                printf("贰佰");
                            if(x==3)
                                printf("叁佰");
                            if(x==4)
                                printf("肆佰");
                            if(x==5)
                                printf("伍佰");
                            if(x==6)
                                printf("陆佰");
                            if(x==7)
                                printf("柒佰");
                            if(x==8)
                                printf("捌佰");
                            if(x==9)
                                printf("玖佰");
                        }
                        else
                        {
                            if(x==1)
                                printf("壹佰");
                            if(x==2)
                                printf("贰佰");
                            if(x==3)
                                printf("叁佰");
                            if(x==4)
                                printf("肆佰");
                            if(x==5)
                                printf("伍佰");
                            if(x==6)
                                printf("陆佰");
                            if(x==7)
                                printf("柒佰");
                            if(x=8)
                                printf("捌佰");
                            if(x==9)
                                printf("玖佰");
                        }
                        }
                        else
                        {
                            if(x==1)
                                printf("壹仟");
                            if(x==2)
                                printf("贰仟");
                            if(x==3)
                                printf("叁仟");
                            if(x==4)
                                printf("肆仟");
                            if(x==5)
                                printf("伍仟");
                            if(x==6)
                                printf("陆仟");
                            if(x==7)
                                printf("柒仟");
                            if(x==8)
                                printf("捌仟");
                            if(x==9)
                                printf("玖仟");
                                 
                        }   
                    }
                    else
                    {
                        if(x==1)
                            printf("壹萬");
                        if(x==2)
                            printf("贰萬");
                        if(x==3)
                            printf("叁萬");
                        if(x==4)
                            printf("肆萬");
                        if(x=5)
                            printf("伍萬");
                        if(x==6)
                            printf("陆萬");
                        if(x==7)
                            printf("柒萬");
                        if(x==8)
                            printf("捌萬");
                        if(x==9)
                            printf("玖萬");
                        
                    }
                }
                else
                {
                    if(x==1)
                        printf("壹拾萬");
                    if(x==2)
                        printf("贰拾萬");
                    if(x==3)
                        printf("叁拾萬");
                    if(x==4)
                        printf("肆拾萬");
                    if(x==5)
                        printf("伍拾萬");
                    if(x==6)
                        printf("陆拾萬");
                    if(x==7)
                        printf("柒拾萬");
                    if(x==8)
                        printf("捌拾萬");
                    if(x==9)
                        printf("玖拾萬");
                    
                }
            }
            else
            {
                if(x==1)
                    printf("壹佰萬");
                if(x==2)
                    printf("贰佰萬");
                if(x==3)
                    printf("叁佰萬");
                if(x==4)
                    printf("肆佰萬");
                if(x==5)
                    printf("伍佰萬");
                if(x==6)
                    printf("陆佰萬");
                if(x==7)
                    printf("柒佰萬");
                if(x==8)
                    printf("捌佰萬");
                if(x==9)
                    printf("玖佰萬");
            }

        }
        else
        {
            if(x==1)
                printf("壹仟萬");
            if(x==2)
                printf("贰仟萬");
            if(x==3)
                printf("叁仟萬");
            if(x==4)
                printf("肆仟萬");
            if(x==5)
                printf("伍仟萬");
            if(x==6)
                printf("陆仟萬");
            if(x==7)
                printf("柒仟萬");
            if(x==8)
                printf("捌仟萬");
            if(x==9)
                printf("玖仟萬");
        }
    }
    else
    {
        if(x==1)
            printf("壹亿");
        if(x==2)
            printf("贰亿");
        if(x==3)
            printf("叁亿");
        if(x==4)
            printf("肆亿");
        if(x==5)
            printf("伍亿");
        if(x==6)
            printf("陆亿");
        if(x==7)
            printf("柒亿");
        if(x==8)
            printf("捌亿");
        if(x==9)
            printf("玖亿");
    }
}

请说出你的问题点，什么输出框有问题？
你的输入是什么，输出实际是什么，想要达到什么效果？

谢谢你回复我，我这个程序的目的是大小写的转换，就是从阿拉伯数字转到繁体的汉字，类似于银行收据之类的，我的问题是：当我输入阿拉伯数字的时候，我按回车它就不输出了，没有反应了。该怎么解决？

首先程序运行，会报错

这个是说你让变量s读取一个int的数据，但是变量s定义的是float类型的数据。因此改成scanf("%f",&s);
其次就是你把if语句的功能想复杂了，它只会执行一遍，只要找到一个条件为真，则执行if后面一个语句，条件为假则执行else后面的语句。
你这个代码只能找到你输入的数的最大位 比如输入“12345”，输出为“壹万五万”，实际上是只能输出壹万，
五万是因为代码敲错了（可以这么理解）。

你这代码写的过于冗杂了，如果了解过循环，这个是没多大问题的。而且清晰简洁。