请帮助我 我的代码有什么问题? 我的代码写名字,平均(等级)输出
import csv
from statistics import mean
with open('C:/Users/sina/Desktop/python pt/jalase19.csv' , 'r') as fo:
reader = csv.reader(fo)
for row in reader :
name = row[0]
grades = list()
for grade in row[1:]:
grades.append(float(grade))
with open('C:/Users/sina/Desktop/python pt/jalase20.csv' , 'w') as fw:
fw.write("name , mean(grades)\n")
答案 0 :(得分:1)
在“ with”语句之后您没有缩进
如here所述,您必须在“ with”语句之后缩进
您的代码应如下所示:
import csv
from statistics import mean
with open('C:/Users/sina/Desktop/python pt/jalase19.csv' , 'r') as fo:
reader = csv.reader(fo)
for row in reader :
name = row[0]
grades = list()
for grade in row[1:]:
grades.append(float(grade))
with open('C:/Users/sina/Desktop/python pt/jalase20.csv' , 'w') as fw:
fw.write("name , mean(grades)\n")
我还认为您是指 fw 而不是 f2
答案 1 :(得分:0)
打开文件时,您缺少缩进。看到错误如何使您指向第4行?当使用context manager打开文件时,以及任何时候使用控制语句(如果是,则等),都必须缩进下一行。
import csv
from statistics import mean
with open('C:/Users/sina/Desktop/python pt/jalase19.csv', 'r') as fo:
reader = csv.reader(fo)
for row in reader:
name = row[0]
grades = list()
for grade in row[1:]:
grades.append(float(grade))
with open('C:/Users/sina/Desktop/python pt/jalase20.csv' , 'w') as f2:
f2.write("name , mean(grades)\n")