函数原型:
string to_string (int val);
string to_string (long val);
string to_string (long long val);
string to_string (unsigned val);
string to_string (unsigned long val);
string to_string (unsigned long long val);
string to_string (float val);
string to_string (double val);
string to_string (long double val);
功能:
将数值转化为字符串。返回对应的字符串
string str;
string output[10] = { "ling","yi","er","san","si","wu","liu","qi","ba","jiu" }; //新建一个string字符串数组,用于存储"ling"到"jiu"
int sum = 0; //sum用于存储个位数之和
cin >> str; //用字符串的方式读入数字
int length = str.length(); //获取数字长度
//计算各位数之和
for (int i = 0; i < length; i++)
{
sum = sum + str[i] - '0';
}
string nums = to_string(sum); //将数字sum转化为字符串