1.读取csv数据,输出到sales.csv文件中$sales=array(array('Northeast','2004-01-01','2004-02-01',12.54),array('Northwest','2004-01-01','2004-02-01',546.33),array('Southeast','2004-01-01','2004-02-01',93.26),array('Southwest','2004-01-01','2004-02-01',945.21),array...
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