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當我試圖寫一個文件中,除了我試圖取代的話我的文件刪除等一應俱全..當我在寫一個文件刪除以外的所有替代詞
這裏是我的代碼:
app.route('/', methods=['POST'])
def writing():
address_1 = address1()
address_2 = network1()
try:
if request.method =="POST":
var1 = request.form ['addr1']
var2 = request.form ['addr2']
changeaddress = [var1, var2]
address = [address_1, address_2]
new_var = []
cur_addr = 0
new_line = None
with open('address.txt','r+') as file:
for line in file:
if address[cur_addr] in line:
new_line = line.replace(address[cur_addr], changeaddress[cur_addr] + "\n")
cur_addr += 1
new_var.append(new_line)
with open('address.txt','w') as file:
file.writelines(new_var)
except BaseException as e:
print e
return render_template('addr.html', var1=var1,var2=var2)
這是我的文本文件:
#######
Address 192.168.0.3
Address 192.168.0.1 <--- I'm reading this
######
##############
########
Network 123.123.0.1 <---- I'm reading this
乳寧的代碼,例如後我更換192.168.0.1
爲1.1.1.1
和123.123.0.1
爲0.0.0.0
我得到這個:
Address 1.1.1.1
Network 0.0.0.0
正如你可以看到刪除除了我替換的東西之外的所有東西。我想得到這樣的東西:
#######
Address 192.168.0.3
Address 1.1.1.1
######
##############
########
Network 0.0.0.0
所以我的應用程序不應該取代我想要替換的行。