#include <stdio.h>#include <ctype.h>//不可打印字符int isunprint(int ch){    return !isprint(ch);}//转换表，储存各个判断函数指针int (*tables[])(int) = {iscntrl, isspace, isdigit, islower, isupper, ispunct, isunprint};int main(){    int count[7] = {0};    int ch;    int idx;    while((ch = getchar()) != EOF){        //转换表中的函数进行测试，如果符合对应的数组项+1        for(idx = 0; idx < 7; idx++){            if(tables[idx](ch)){                count[idx]++;            }        }    }    for(idx = 0; idx < 7; idx++){        printf("%d\n", count[idx]);    }    return 0;}