已知字符 '0' 的ASCII编码的十进制表示为48，则执行下面C++代码后，输出是
#include <iostream>
using namespace std;
int main() {
string s = "0629";
int n = s.length();
int x = 0;
for (int i = 0; i < n; i++)
x += s[i];
cout << x << endl;
return 0;
}
