Python String splitlines() 方法

Python String splitlines()方法用于在行边界处拆分行。该函数返回字符串中的行列表，包括换行符（可选）。

Syntax:

string.splitlines([keepends])

Parameters:

keepends (optional): When set to True line breaks are included in the resulting list. This can be a number, specifying the position of line break or, can be any Unicode characters, like “\n”, “\r”, “\r\n”, etc as boundaries for strings.

Return Value:

Returns a list of the lines in the string, breaking at line boundaries.

编程需要懂一点英语

splitlines() 在以下行边界上拆分：

Representation	Description
\n	Line Feed
\r	Carriage Return
\r\n	Carriage Return + Line Feed
\x1c	File Separator
\x1d	Group Separator
\x1e	Record Separator
\x85	Next Line (C1 Control Code)
\v or \x0b	Line Tabulation
\f or \x0c	Form Feed
\u2028	Line Separator
\u2029	Paragraph Separator

示例 1

Python3

# Python code to illustrate splitlines()
string = "Welcome everyone to\rthe world of Geeks\nGeeksforGeeks"
  
# No parameters has been passed
print (string.splitlines( ))
  
# A specified number is passed
print (string.splitlines(0))
  
# True has been passed 
print (string.splitlines(True))

Python3

# Python code to illustrate splitlines()
string = "Cat\nBat\nSat\nMat\nXat\nEat"
  
# No parameters has been passed
print (string.splitlines( ))
  
# splitlines() in one line
print('India\nJapan\nUSA\nUK\nCanada\n'.splitlines())

Python3

# Python code to get length of each words
def Cal_len(string):
      
    # Using splitlines() divide into a list
    li = string.splitlines()
    print (li)
      
    # Calculate length of each word
    l = [len(element) for element in li]
    return l
  
# Driver Code    
string = "Welcome\rto\rGeeksforGeeks"
print(Cal_len(string))

输出：

['Welcome everyone to', 'the world of Geeks', 'GeeksforGeeks']
['Welcome everyone to', 'the world of Geeks', 'GeeksforGeeks']
['Welcome everyone to\r', 'the world of Geeks\n', 'GeeksforGeeks']

示例 2

Python3

# Python code to illustrate splitlines()
string = "Cat\nBat\nSat\nMat\nXat\nEat"
  
# No parameters has been passed
print (string.splitlines( ))
  
# splitlines() in one line
print('India\nJapan\nUSA\nUK\nCanada\n'.splitlines())

输出：

['Cat', 'Bat', 'Sat', 'Mat', 'Xat', 'Eat']
['India', 'Japan', 'USA', 'UK', 'Canada']

示例 3：实际应用

在这段代码中，我们将了解如何使用 splitlines() 的概念来计算字符串中每个单词的长度。

Python3

# Python code to get length of each words
def Cal_len(string):
      
    # Using splitlines() divide into a list
    li = string.splitlines()
    print (li)
      
    # Calculate length of each word
    l = [len(element) for element in li]
    return l
  
# Driver Code    
string = "Welcome\rto\rGeeksforGeeks"
print(Cal_len(string))

输出：

['Welcome', 'to', 'GeeksforGeeks']
[7, 2, 13]