In function 'int mainO'
[Error] cannot convert 'SqStack* to SqStack2* for argument 'I' to 'int InitStack2(SqStack2*)"
(Error]'EnQuene' was not declared in this scope
[Error cannot convert 'Sqstack" to 'Sqstack2" for argument 'I to int Push2(SqStack2", Car2)
[Error] could not convert S2' from SqStack to SqStack2
[Error]'While' was not declared in this scope
这不很清楚啊，参数要求SqStack2 * 类型，但你传递的是SqStack *类型，类型不一致啊
然后EnQuene写错了，应该是EnQueue吧
While也写错了，应该是while吧