Python中如何抓取CSV表格数据

# 先以只读模式打开文件
fi = open("score.csv","r")
ls = []
for row in fi:
    ls.append(row.strip("\n").split(","))
print(ls)

输出效果：

[['课程名', '1月', '2月', '3月'], ['语文', '89', '95', '88'], ['数学', '77', '87', '100'], ['英语', '86', '78', '93'], ['物理', '56', '67', '79'], ['科学', '73', '84', '86']]

row.strip("\n")

去除数据的换行符

.split(",")

再将数据逐个切片加入（append）空列表

附加：求平均成绩并导入新文本

fi = open("score.csv","r")
fo = open("avg-score.txt","w")
ls = []
x = []
sum = 0
for row in fi:
    ls.append(row.strip("\n").split(","))
print(ls)
for i in range(1,len(ls)):
    sum = int(ls[i][1])+int(ls[i][2])+int(ls[i][3])
    x.append(sum)
for i in range(len(x)):
    x[i]=x[i]/3
print(x)
fo.write("语文：{:.2f}\n数学：{:.2f}\n英语：{:.2f}\n物理：{:.2f}\n科学：{:.2f}\n".format(x[0],x[1],x[2],x[3],x[4])) # 格式化字符串，精确到小数点后两位
fi.close()
fo.close()
    

输出效果：