ValueError：无法将字符串转换为浮点数：'220'

Question

我正在尝试读取 .csv 文件并收到此错误

ValueError: could not convert string to float: '220'

到目前为止，这是我的代码：

import csv

import matplotlib

import os

environment = []

# Initialise data dir

dir = os.getcwd()

print(dir)

parent = os.path.dirname(dir)

parent = os.path.dirname(parent)

parent = os.path.dirname(parent)

basedir = os.path.dirname(parent)

print(basedir)

datadir = os.path.join(basedir, 'data')

print(datadir)

inputdatadir = os.path.join(datadir, 'input')

print(inputdatadir)

# Open file and read.

file = os.path.join(inputdatadir, 'snowslope1.csv')

f = open(file, newline='') 

reader = csv.reader(f, quoting=csv.QUOTE_NONNUMERIC)

for row in reader: # A list of rows

    rowlist = []

    for value in row: # A list of value

        rowlist.append(value)

        #print(value)

    environment.append(rowlist)

f.close()

# Plot environment.

matplotlib.pyplot.imshow(environment)

matplotlib.pyplot.show()

有人可以帮忙解决这里出了什么问题吗？我不确定错误在哪里，因为它们似乎都只是这样的数字：我的文件 Snowslope1.csv 中的 220,221,222,223

Answer 1

这看起来像UTF-8 BOM。尝试使用以下命令打开文件encoding="utf-8-sig"