#include
using namespace std;
int main()
{
char *a;
cout<<"请输入一串字符:"<
int i,n=10,t,sum=0;
a=new(char[n]);
for(i=0;i
cin>>a[i];
for(i=0;i
{
t=int(a[i]);
if(t>=48&&t<=57)
sum+=1;
}
cout<<"十进制字符共有"<<sum<<"个"<<endl;
cout<<"\n";
return 0;
}