程序运行参数中用什么可以替代空格键？

运行后可得到ASCII码对照表
7，8，32的字符应该是空格

#include<iostream.h>
#include<iomanip.h>

class table {
public:
table(int p)
{ i = p; }
void ascii();
protected:
int i;
};

void table::ascii() {
int k = 1;
for (; i <= 128; i++) {
cout<<setw(4)<<i<<' '<<(char)i;
if (!(k%12))
cout<<endl;
k++;
}
cout<<endl;
}

class der_table:public table {
public:
der_table(int p, char *m):table(p){c = m;}
void print();
protected:
char *c;
};

void der_table::print() {
cout<<c<<endl;
table::ascii();
}

void main() {
der_table ob1(1,"ASCII value--char");
ob1.print();
cout<<endl;
der_table ob2('a',"ASCII value--char");
ob2.print();
char c; cin&g