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当我试图写一个文件中,除了我试图取代的话我的文件删除等一应俱全..当我在写一个文件删除以外的所有替代词
这里是我的代码:
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)
这是我的文本文件:
#######
Address 192.168.0.3
Address 192.168.0.1 <--- I'm reading this
######
##############
########
Network 123.123.0.1 <---- I'm reading this
乳宁的代码,例如后我更换192.168.0.1
为1.1.1.1
和123.123.0.1
为0.0.0.0
我得到这个:
Address 1.1.1.1
Network 0.0.0.0
正如你可以看到删除除了我替换的东西之外的所有东西。我想得到这样的东西:
#######
Address 192.168.0.3
Address 1.1.1.1
######
##############
########
Network 0.0.0.0
所以我的应用程序不应该取代我想要替换的行。