提示并输入一个字符串，统计该字符中大写、小写字母个数、数字个数、空格个数以及其他字符个数(要求使用C++风格字符串完成)

#include <iostream>
#include <string.h>
#include <array>
using namespace std;int main()
{string str;cout << "请输入字符串:";getline(cin,str);int i=0;int capital=0,lowercase=0,number=0,space=0,other=0;while(str[i]!='\0'){if(str[i]>='A' && str[i]<='Z'){capital++;}else if(str[i]>='a' && str[i]<='z'){lowercase++;}else if(str[i]>='0' && str[i]<='9'){number++;}else if(str[i]==' '){space++;}else{other++;}i++;}cout << "大写字母个数：" << capital << endl;cout << "小写字母个数：" << lowercase << endl;cout << "数字个数：" << number << endl;cout << "空格个数：" << space << endl;cout << "其他字符：" << other << endl;return 0;
}