WTF
WTF
Merge branch 'master' of https://github.com/QAQO-O/KVStore
Merge branch 'master' of https://github.com/QAQO-O/KVStore
Merge branch 'master' of https://github.com/QAQO-O/KVStore
Merge branch 'master' of https://github.com/QAQO-O/KVStore
Merge branch 'master' of https://github.com/QAQO-O/KVStore
Merge branch 'master' of https://github.com/QAQO-O/KVStore
WTF
Merge branch 'master' of https://github.com/QAQO-O/KVStore
test codes added into task 3