#include <iostream>
#include <array>
using namespace std;int main()
{cout<<"请输入一个字符串"<<endl;//array<string,100> str;string str;getline(cin,str);int daxie=0,xiaoxie=0,num=0,space=0,other=0;int len=str.size();;for(int i=0;i<len;i++){if(str[i]>='A'&&str[i]<='Z'){daxie++;}else if(str[i]>='a'&&str[i]<='z'){xiaoxie++;}else if(str[i]>='0'&&str[i]<='9'){num++;}else if(str[i]==' '){space++;}else{other++;}}cout<<"大写字母个数是"<<daxie<<endl;cout<<"小写字母个数是"<<xiaoxie<<endl;cout<<"数字个数是"<<num<<endl;cout<<"空格个数是"<<space<<endl;cout<<"其他字符个数是"<<other<<endl;return 0;
}

运行结果：