对比文件

用python来对比csv大文件

with open("a.csv") as f1,open("b.csv") as f2:
    for line1,line2 in zip(f1,f2):
        if (line1 != line2):
            items1, items2 = line1.split(","), line2.split(",")
            for item1, item2 in zip(items1, items2):
                if (item1 != item2):
                    print("{0}/{1}".format(item1, item2))

代码很漂亮，就是有点儿慢啊。