自己编的和样例都过了，求助！！！```cpp
#include <bits/stdc++.h>
using namespace std;
int main()
{
string a;
cin >> a;
int f=0,wz=0;
for(int i=0;i<a.size();i++)
{
if(a[i]==',')
{
if(f==1)
{
f=0;
}
else if(f==0)
{
for(int j=wz;j<i;j++)
{
cout << a[j];
}
cout << endl;
wz=i+1;
}
}
else if(!((a[i]>='a' && a[i]<='z') || (a[i]>='A' && a[i]<='Z') || (a[i]<='9' && a[i]>='0') || a[i]=='!' || a[i]=='@' || a[i]=='#' || a[i]==''))
{
f=1;
}
}
int flag=0;
for(int i=wz;i<a.size();i++)
{
if(!((a[i]>='a' && a[i]<='z') || (a[i]>='A' && a[i]<='Z') || (a[i]<='9' && a[i]>='0') || a[i]=='!' || a[i]=='@' || a[i]=='#' || a[i]==''))
{
flag=1;
break;
}
}
if(flag==0)
{
for(int i=wz;i<a.size();i++)
{
cout << a[i];
}
cout << endl;
}
return 0;
}
