[英]Remove backslash character from string
我有一個文件,其中包含美國的每個郵政編碼以及其各自的緯度和經度。 文件格式為“ ZIP / LAT / LNG \\ n”,我將每個值保存到數據庫中。 因此,我編寫了以下代碼來測試是否可以正確拆分值:
zip_code_file = open('zipcode.rtf')
for s in zip_code_file.read().split(','):
print(s)
但這會打印“ 00602”,“ 18.361945”,“-67.175597 \\”
如何從經度中刪除“ \\”,以便將數字正確保存到數據庫中? 我嘗試了以下操作,但沒有成功:
for s in zip_code_file.read():
if s == '\\':
s.replace('\]', '')
print(s)
做這個:
l=["00602", "18.361945", "-67.175597\\"]
print([i.replace('\\','') for i in l])
輸出:
['00602', '18.361945', '-67.175597']
您的代碼:
for s in zip_code_file.read(): # ok, you get lines
if s == '\\': # if the whole line is equal to \
s.replace('\]', '') # replace "\]" (???) with ""
print(s)
問題:
str.replace()
確實返回了您不保留的更改字符串,因此將其丟棄 解:
with open('zipcode.rtf') as zip_code_file:
lines = zip_code_file.readlines()
lines = [x.strip() for x in lines if x.strip()] # removes whitespaces && empty lines
for l in lines:
try:
zipCode,lat,long = l.split(",") # split on ',' or '/'? your code and Q differ
long = long.rstrip("\\") # remove trailing \
# do smth with zipCode,lat,long
except ValueError as ve:
print("Value error in line: ", l)
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