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25 lines
794 B
25 lines
794 B
#include <cassert>
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#include <iostream>
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#include "leveldb/db.h"
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int main(){
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leveldb::DB* db;
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leveldb::Options options;
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options.create_if_missing = true;
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leveldb::Status status = leveldb::DB::Open(options, "/tmp/testdb", &db);
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std::cout<< status.ToString() << '\n';
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status = db -> Put(leveldb::WriteOptions(), "key1", "val1");
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if(status.ok()) {
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std::string val;
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status = db -> Get(leveldb::ReadOptions(), "key1", &val);
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std::cout<< "Find value of \'key1\' From db:" << val << "\n";
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}
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if(status.ok()){
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std::string val;
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db -> Delete(leveldb::WriteOptions(), "key1");
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status = db -> Get(leveldb::ReadOptions(), "key1", &val);
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//Not find.
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std::cout<< status.ToString() <<'\n';
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}
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delete db;
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}
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