Python String translate()用法及代码示例

translate()返回一个字符串，该字符串是根据给定的转换映射修改为给定字符串的字符串。

有两种翻译方法：

提供映射作为字典

参数：

string.translate(映射)

mapping-在两个字符之间有映射的字典。
返回：返回修改后的字符串，其中每个字符根据提供的映射表映射到其对应的字符。

# Python3 code to demostrate  
# translations without  
# maketrans()  
  
# specifying the mapping  
# using ASCII  
table = { 119 :103, 121 :102, 117 :None }  
  
# target string  
trg = "weeksyourweeks"
  
# Printing original string  
print ("The string before translating is:", end ="")  
print (trg)  
  
# using translate() to make translations.  
print ("The string after translating is:", end ="")  
print (trg.translate(table))

输出：

The string before translating is:weeksyourweeks
The string after translating is:geeksforgeeks

再举一个例子：

# Python 3 Program to show working 
# of translate() method 
  
# specifying the mapping   
# using ASCII   
translation = {103:None, 101:None, 101:None} 
  
string = "geeks"
print("Original string:", string) 
  
# translate string 
print("Translated string:",  
       string.translate(translation))

输出：

Original string:geeks
Translated string:ks

使用提供映射maketrans()

Syntax:maketrans(str1, str2, str3)
Parameters:
str1:Specifies the list of characters that need to be replaced.
str2:Specifies the list of characters with which the characters need to be replaced.
str3:Specifies the list of characters that needs to be deleted.

Returns:Returns the translation table which specifies the conversions that can be used by translate()

# Python 3 Program to show working 
# of translate() method 
  
# First String 
firstString = "gef"
  
# Second String 
secondString = "eks"
  
# Third String 
thirdString = "ge"
  
# Original String 
string = "geeks"
print("Original string:", string) 
  
translation = string.maketrans(firstString,  
                               secondString,  
                               thirdString) 
  
# Translated String 
print("Translated string:",  
       string.translate(translation))

输出：

Original string:geeks
Translated string:ks

输出：

Original string:geeks
Translated string:ks

相关用法

注：本文由纯净天空筛选整理自Akanksha_Rai大神的英文原创作品 Python | String translate()。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。