Python的替換文本的一部分文本文件

Question

當前的文本文件：

NAME S1 2581751 2581758  1    
NAME S2 2581761 2581776  1    
NAME S3 2581779 2581786  1  
NAME S4 2581789 2581804  1   
NAME S5 2581807 2581814  1   
C  A0-ABC   
    A(1) = 0.1518  !k2    
    B(2) = 0.4910  !K2O   
    C(3) = 0.0314  !D2  
    D(4) = 0.0876  !CO   
    E(5) = 0.2382  !C1   
C CI-ABC     
NAME S5 2581779 2581786  1    
NAME S5 2581789 2581804  1   
NAME S5 2581807 2581814  1 

更新文本文件看起來像：

NAME S1 2581751 2581758  1    
NAME S2 2581761 2581776  1    
NAME S3 2581779 2581786  1  
NAME S4 2581789 2581804  1   
NAME S5 2581807 2581814  1   
C  A0-ABC   
    A(1) = 0.2145  !k2    
    B(2) = 0.542 !K2O   
    C(3) = 0.35  !D2  
    D(4) = 0.0476  !CO   
    E(5) = 0.123  !C1   
C CI-ABC     
NAME S5 2581779 2581786  1    
NAME S5 2581789 2581804  1   
NAME S5 2581807 2581814  1 

我想改變文本文件（0.1518，0.4910號。 ..）更改爲新號碼（0.2145，0.5242 ...），如下所示。最初，我將C A0-ABC和C CI-ABC之間的行取出並保存在列表中，然後更新數字並將其另存爲不同的名稱。但我有問題將更新後的數字替換爲原始文本文件。

import sys 
import os 
import numpy as np    
import math   
import string 

path='Directory..'                
k2 =0.2145 
K2O=0.542 
D2 = 0.35 
CO = 0.476 
C1 = 0.123 
Update=[str(k2),str(K2O),str(D2),str(CO),str(C1)] 
files = os.listdir('.') 
f = open(path+'\Input.txt','r') 
lines = f.readlines() 
copy = False 
save_list=[] 
for line in lines : 
    if line.strip() == "C A0-ABC": 
     copy = True 
    elif line.strip() == "C CI-ABC": 
     copy = False 
    elif copy: 
     save_list.append(line) 

file= open(path+'\Update_INPF.txt','w') 
lis=[x.split() for x in save_list] 
A = [str(x[0]) for x in lis] 
B = [str(x[1]) for x in lis] 
C = Update 
D= [str(x[3]) for x in lis] 
F=zip(A,B,C,D) 

for x in list(F): 
    file.write("{0}\t{1}\t{2}\t{3}\n".format(*x)) 
file.close() 
print save_list 

Answer 1

path = 'Directory..'                

k2 = 0.2145 
K2O = 0.542 
D2 = 0.35 
CO = 0.476 
C1 = 0.123 

fold = open(path + '\Input.txt','r') 
fnew = open(path + '\Update_INPF.txt','w') 

for line in f.readlines(): 

    line = line.split() 

    if line[0] == 'A(1)': 
     newline = ' '.join(line[:2] + [str[k2]] + line[-1]) 
    elif line[0] == 'B(2)': 
     newline = ' '.join(line[:2] + [str[K20]] + line[-1]) 
    elif line[0] == 'C(3)': 
     newline = ' '.join(line[:2] + [str[D2]] + line[-1]) 
    elif line[0] == 'D(4)': 
     newline = ' '.join(line[:2] + [str[C0]] + line[-1]) 
    elif line[0] == 'E(5)': 
     newline = ' '.join(line[:2] + [str[C1]] + line[-1]) 
    else: 
     newline = line 

    fnew.write(newline) 

fold.close() 
fnew.close()