从键盘输入一个字符串,统计字符串从‘a’到‘z’26个字母各自出现的次数...答:include"stdio.h"include"ctype.h"main(){ char s[200],a[26];int i=0,j=0,count=0,k,b[26];fgets(s,500,stdin);for(i=0,j=0;s[i];i++)if(islower(s[i]))(s+j++)=*(s+i);(s+j)='\0';printf("%s",s);i=0;j=0;while(s[i]){ if(i==0){ a[j]=s[i+...