1、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>using namespace std;int main()
{char str[20];cout << "please enter the str:";gets(str);int uppcaseCount = 0; //定义大写字母的个数int lowcaseCount = 0; //定义小写字母的个数int digitCount = 0;   //定义数字的个数int spaceCount = 0;   //定义空格的个数int otherCount = 0;    //定义其他字符的个数for(int i=0; str[i]!='\0';i++){if(str[i]>=65 && str[i]<=90){uppcaseCount++;}else if(str[i]>=97 && str[i]<=122){lowcaseCount++;}else if(str[i]>='1' && str[i]<='9'){digitCount++;}else if(str[i] == ' '){spaceCount++;}else{otherCount++;}}cout << "Uppercase letter:" << uppcaseCount << endl;cout << "Lowercase letter:" << lowcaseCount << endl;cout << "Digits:" << digitCount << endl;cout << "Space:" << spaceCount << endl;cout << "Ohter characters" << otherCount << endl;return 0;
}

2、思维导图