用新單詞替換字符串中的字符

Question

我有一個字符串數組，並且想進行一些替換。例如：

my_strings = [['hi/hello world &'], ['hi/hello world'], ['it\90s the world'], ['hello world'], ['hello "world"']] 

new_strings = [['hi and hello world'], ['hi and hello world'], ["it's the world"], ['hello world'], ['hello world']] 

我如何可以替換/與和，刪除&和\ 90，並刪除「」周圍的話，如果陣列中的一個字符串中包含這些字符？

Answer 1

可以看出在該職位：How to delete a character from a string using python?

你可以在你的整個陣列在一個循環中使用，例如，類似的東西

if "/" in my_string: 
    new_string = my_string.replace("/", "and") 

而且包括它。

Answer 2

首先，您應該創建一個dict對象來映射單詞與它的替換。例如：

my_replacement_dict = { 
    "/": "and", 
    "&": "", # Empty string to remove the word 
    "\90": "", 
    "\"": "" 
} 

在你的清單，replace以上字典基礎上的話然後迭代，以獲得所需的列表：

my_list = [['hi/hello world &'], ['hi/hello world'], ['it\90s the world'], ['hello world'], ['hello "world"']] 
new_list = [] 

for sub_list in my_list: 
    # Fetch string at `0`th index of nested list 
    my_str = sub_list[0] 
    # iterate to get `key`, `value` from replacement dict 
    for key, value in my_replacement_dict.items(): 
     # replace `key` with `value` in the string 
     my_str = my_str.replace(key, value) 
    new_list.append([my_str]) # `[..]` to add string within the `list` 

的new_list最終內容將是：

>>> new_list 
[['hi and hello world '], ['hi and hello world'], ['its the world'], ['hello world'], ['hello world']]