read_csv can  show the correct string when the string is  chinese text
the csv file structure below:
(header:)   Chinese string , Chinese string, Chinese string ,Chines string 
(row1 :)      新浪行业, 生物制药    ,   swzy,       0  

while using 
data=pd.read_csv(filepath,encoding='utf-8')

the read_csv can parse the file content,  but when use print data, the Chines string represents like "???" which makes it impossible to use the column names to index. 

by the way , while using the code below , it will show the correct Chinese string:
print open("data.csv").read()  although open(“data.csv").read() will not display the human-readable Chinese text .
