Python String splitlines() 方法

Python字符串splitlines()方法用于在行边界分割行。该函数返回字符串中的行数列表，包括换行（可选）.

语法:

string.splitlines([keepends])

参数:

keepends (可选) : 当设置为True时，换行将被包含在结果列表中。这可以是一个数字，指定换行的位置，或者可以是任何Unicode字符，如”\n”、”\r”、”\r\n “等作为字符串的边界.

返回值:

返回字符串中的行的列表，在行的边界处断开.

splitlines()在下列行的边界上进行分割:

示例1

# 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))

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

# 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: Practical Application

在这段代码中，我们将了解如何使用splitlines()的概念来计算一个字符串中每个字的长度.

# 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]