python - 轉置行和列

Question

這是我的代碼。我是編程新手，所以你可以幫我解決如何正確調換行和列的方法嗎？

def scytale_encrypt(plain_text, key): 

    chars = [c for c in plain_text if c not in (' ',',','.','?','!',':',';',"'")] 
    chunks = math.ceil(len(chars)/ float(key)) 
    inters, i, j = [], 1, 1 
    cipher, k = [], 0 
    item=[] 

    while i <= chunks : 
     inters.append(tuple(chars[j-1:(j + key)-1])) 
     i += 1 
     j += key 


    while k < key: 
     l = 0 
     while l < chunks: 
      if k >= len(inters[l])and plain_text.islower(): 
       cipher.append('z') 
      elif k >= len(inters[l]): 
        cipher.append('Z') 
      else: 
       cipher.append(inters[l][k]) 
      l += 1 
     k += 1 
    print (inters) 
    return ''.join(cipher); 

我的輸入 My inpputed plain text and key

Answer 1

這裏是代碼&輸出：

aMyArray = [ ['a1', 'a2','a3','a4','a5'], ['b1','b2','b3'], ['c1','c2','c3']] 

aMyArrayTrsp = [] 
aMyArrayTemp = [] 

sRec = "" 
iMaxRows = 0 
iMaxCols = 0 

print "initial array:" 
for i in range(len(aMyArray)): 
     sRec = "" 
     for j in range(len(aMyArray[i])): 
       sRec = sRec+","+aMyArray[i][j] 
     print sRec 

print "Finding max" 
iMaxCols = len(aMyArray) 
for i in range(len(aMyArray)): 
     if(iMaxRows<len(aMyArray[i])): 
       iMaxRows = len(aMyArray[i]) 
print("Max rows="+str(iMaxRows)) 
print("Max cols="+str(iMaxCols)) 

print "Creating a blank 2D list.." 
for i in range(iMaxRows): 
     aMyArrayTemp = [] 
     for j in range(iMaxCols): 
       aMyArrayTemp.append("") 
     aMyArrayTrsp.append(aMyArrayTemp) 

print "transposing.." 
for i in range(iMaxRows): 
     for j in range(iMaxCols): 
       try: 
         aMyArrayTrsp[i][j]=aMyArray[j][i] 
       except IndexError: 
         aMyArrayTrsp[i][j]="" 


print "Final output:" 
for i in range(len(aMyArrayTrsp)): 
     sRec = "" 
     for j in range(len(aMyArrayTrsp[i])): 
       sRec = sRec+","+aMyArrayTrsp[i][j] 
     print sRec 

這裏是輸出。

initial array: 
,a1,a2,a3,a4,a5 
,b1,b2,b3 
,c1,c2,c3 
Finding max 
Max rows=5 
Max cols=3 
Creating a blank 2D list.. 
transposing.. 
Final output: 
,a1,b1,c1 
,a2,b2,c2 
,a3,b3,c3 
,a4,, 
,a5,,