{

int arr[SIZE];

safearay()

{

int i;

for(i = 0; i < SIZE; i++)

{

arr[i] = i;

}

}

int& operator[](const int &i)

{

if( i > SIZE )

{

cout << "索引超过最大值" <<endl;

// 返回第一个元素

return arr[0];

}

return arr[i];

}

shared_ptr<BDictionary> dict = BDictionary::create();

shared_ptr<BString> key2 = shared_ptr<BString>(BString::create("key2"));

shared_ptr<BString> value2 = shared_ptr<BString>(BString::create("value2"));

shared_ptr<BDictionary> d1 = shared_ptr<BDictionary>(BDictionary::create({{key2, value2}}));

shared_ptr<BString> key3 = shared_ptr<BString>(BString::create("key3"));

shared_ptr<BString> value3 = shared_ptr<BString>(BString::create("value3"));

auto deft = dict->setDefault("key2", value2);

cout << getPrettyRepr(dict) << endl;

cout << getPrettyRepr(deft) << endl;

deft = dict->setDefault("key2", value2);

cout << getPrettyRepr(dict) << endl;

cout << getPrettyRepr(deft) << endl;

deft = dict->setDefault("key3", value3);

cout << getPrettyRepr(dict) << endl;

cout << getPrettyRepr(deft) << endl;

cout << dict->hasKey("key2") << endl;

cout<< (*dict)["key2"]->as<BString>()->value()->c_str() << endl;

shared_ptr<BString> value4 = shared_ptr<BString>(BString::create("value4"));

(*dict)["key4"] = value4;

cout<< (*dict)["key4"]->as<BString>()->value()->c_str() << endl;

dict->erase("key4");

auto vl = BList::create({

BString::create("abcd"),

BString::create("1234"),

BString::create("xxx"),

BString::create("yyy")

});

BListPtr vl1 = BList::create({

BString::create("zzzabcd"),

BString::create("zzz1234"),

});

cout << *(*vl)[1]->as<BString>()->value() << endl;

auto mx = dict->values();

cout << "mx->size() : " << mx->size() << endl;

cout << *dict->getValue<BString>("key2")->value() << endl;

cout << "+++++++++++++" << endl;

for (int i = 0; i < 3; i++) {

vl->shuffle();

cout << "vl->getItem(1) : " << *vl->getItem<BString>(1)->value() << endl;

}

// vl->extend(*vl1).extend(*vl1);

vl->extend(vl1);

vl->extend(vl1);

cout << vl->size() << endl;

cout << "+++++++++++++" << endl;

auto tmp_vl = vl->range(0, -1);

cout << tmp_vl->size() << endl;

auto tmp_vl1 = vl->range(-4);

cout << tmp_vl1->size() << endl;

vl->range_erase(-3, -1);

cout << vl->size() << endl;

cout << *dict->getValue<BString>("key20", BString::create("empty"))->value() << endl;

cout << *dict->getValue<BString>("key2")->value() << endl;

return 0;