只能是

char var;
//或者
char var = value;
//不能写
char value;

另外你的能不能声明是赋值是想说啥？

char * a = "xxx", *b = "xxx", *c = "xxx";
cout << a << b << c;

每次提问，问题解决请采纳

char a = 'A';char b = 'B';char c = 'C';char d = 'd';
a = a + 4;b = b + 4;c = c + 4;d = d + 4;
cout << a << b << c << d << endl;