針對每行數(shù)據(jù)內(nèi)容為”TimestampUrl”的數(shù)據(jù)文件,在用JobConf對象conf設(shè)置conf.setInputFormat(WhichInputFormat.class)來讀取這個(gè)文件時(shí),WhichInputFormat應(yīng)該為以下的()
A.TextInputFormat
B.KeyValueTextInputFormat
C.SequenceFileInputFormat
D.NLineInputFormat