python中如何读取csv

普通方法读取(open函数打开csv文件,然后使用for循环读取内容):
with open("fileName.csv") as file:
for line in file:
print line
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用CSV标准库读取:
import csv
csv_reader = csv.reader(open("fileName.csv"))
for row in csv_reader:
print row
用pandas读取:
import pandas as pd
data = pd.read_csv("fileName.csv")
print data
data = pd.read_table("fileName.csv",sep=",")
print data
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