帮忙看下代码哪错了..
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#include <iostream> using namespace std; void swap(int *a,int *b); { cout<<"swap前"<<*a<<*b<<endl; *a++; *b++; cout<<"swap后"<<*a<<*b<<endl; } void main() { int a=2,b=3; cout<<"main前"<<a<<b<<endl; swap(int &a,int &b); cout<<"main后"<<a<<b<<endl; }