迭代器失效及解决方案

// set::begin/end
#include <iostream>
#include <set>

int main ()
{
    int myints[] = {75,23,55};
    std::set<int> myset (myints,myints+2);

    std::cout << "myset contains:";
    for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
    {
        std::cout << ' ' << *it;
        myset.erase(it); // 此操作导致迭代器失效，产生bug
    }
/*    for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
    {
        std::cout << ' ' << *it;
        myset.erase(it);
        it = myset.begin();// 解决方案一
    }*/
/*    for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
    {
        std::set<int>::iterator next = it;
        ++next;
        std::cout << ' ' << *it;
        myset.erase(it);
        it = next;  // 解决方案2
    }*/
    std::cout << '\n';

    return 0;
}