程序就是这样的啊
文件是:
userId,movieId,rating,timestamp
1,31,2.5,1260759144
1,1029,3.0,1260759179
1,1061,3.0,1260759182
1,1129,2.0,1260759185
1,1172,4.0,1260759205
1,1263,2.0,1260759151
1,1287,2.0,1260759187
1,1293,2.0,1260759148
1,1339,3.5,1260759125
1,1343,2.0,1260759131
1,1371,2.5,1260759135
1,1405,1.0,1260759203
1,1953,4.0,1260759191
1,2105,4.0,1260759139
1,2150,3.0,1260759194
1,2193,2.0,1260759198
1,2294,2.0,1260759108
1,2455,2.5,1260759113
1,2968,1.0,1260759200
1,3671,3.0,1260759117
2,10,4.0,835355493
2,17,5.0,835355681
2,39,5.0,835355604 |