#include<stdio.h>
#include<string.h>
void main()
{
    void tongjizifuchuan(char a[]);
    char a[100];
    printf("please input string a:\n");
    scanf("%s",a);
    tongjizifuchuan(a);
    printf("\n");
}
    void tongjizifuchuan(char a[])
    {
        int i=0,j=0,k=0,l=0,m=0;
        while(a[m]!='\0')
        {
            m++;
            if((a[m]>='a'&& a[m]<='z')||(a[m]>='A'&& a[m]<='Z'))
                i++;
            else
                if(a[m]>='0'&& a[m]<='9')
                    j++;
                else
                    if(a[m]==' ')
                        k++;
                    else
                        l++;
        }
        printf("字母数：%d\n数字数：%d\n空格数：%d\n其他：%d\n",i,j,k,l);
    }