Python Learning Notes--Modify the configuration file

Simple process
Loop output 3 operation options read, modify, delete
Input 1 2 3
After you have entered the number and then execute the appropriate method


Import OS

def read ():
    Read
    WithOpen"Haproxy.txt","R",encoding="Utf-8")As R1:
list1= R1.readlines ()


 For lineIn List1:
 If"Backend"In line:
List1_index=list1.index (line) +1
 Break

List2=list1[list1_index:]
 For Line_newIn List2:
 Print (line_new)

# def crtate (bakend,server,weight,maxconn):
def crtate (*args):
 Create
 WithOpen"Haproxy.txt","A +",encoding="Utf_8")As A1:
arg = {
 ' Bakend ': args[0],
 ' Record ': {
 ' Server ': args[1],
 ' Weight ': args[2],
 ' Maxconn ': args[3]
}
}
 PrintType (ARG))
 For IIn ARG:
 Print (I,arg[i])
 If i=="Record":
A1.write ("\n\t\t"+STR (Arg.get ("Record")). Replace ("‘",""). Replace ("{"," ").
Replace"}",""). Replace (":",""))
 Else
A1.write ("\ n"+STR (i))
A1.write (" "+STR (arg[i]))
A1.flush ()

def delete (x):
 Delete
 WithOpen"Haproxy.txt","R",encoding="Utf-8")As D1, \
 Open"Haproxy_new.txt","W",encoding="Utf-8")As D2:
D1a=d1.readlines ()
 For Index,lineInchEnumerate (D1A):
 If XIn line:
 Print (index)
Delete_index=index
 Print (D1a[delete_index])
 Print (d1a[delete_index+1])
 # d1.seek (0)
D1a.pop (Delete_index)
D1a.pop (Delete_index)
 For IIn D1A:
D2.write (i)
Os.rename ("Haproxy.txt","Haproxy.bak")
Os.rename ("Haproxy_new.txt","Haproxy.txt")

While True:
q=InputPlease enter the action number 1. Read 2. Add 3. Delete >> ")
 If q=="1":
Read ()
 if q== "2": 
 W =input ( "first >>>:") 
 W1 = input ( "second >>>:") 
 W2 = Span style= "COLOR: #000080" >input ( "third >>>:") 
 W3 = Span style= "COLOR: #000080" >input ( "fourth >>>:") 
 print (W,W1,W2,W3) 
 Crtate (W,W1,W2,W3) 
 if q== "3": 
 S =input ( "Enter a parameter >>>") 
 Delete (s) 
               

Python Learning Notes--Modify the configuration file by three