Python String ljust() 方法

Python String ljust() 方法根据指定的宽度左对齐字符串，如果未传递 'fillchr' 参数，则用空格填充行的剩余空间。

Syntax:

ljust(len, fillchr)

Parameters:

• len: The width of string to expand it.
• fillchr (optional): The character to fill in the remaining space.

Return Value:

Returns a new string of given length after substituting a given character in right side of original string.

示例 1

Python3

# example string
string = 'gfg'
width = 5
  
# print left justified string
print(string.ljust(width))

输出：

gfg  

解释：

此处，定义的最小宽度为 5。因此，结果字符串的最小长度为 5。并且，字符串'gfg' 向左对齐，这使得在单词的右侧留下两个空格。

示例 2

蟒蛇3

# Python3 code to demonstrate
# the working of ljust()
  
lstr = "I love geeksforgeeks"
  
# Printing the original string
print ("The original string is : \n", lstr, "\n")
  
# Printing the left aligned
# string with "-" padding
print ("The left aligned string is : ")
print (lstr.ljust(40, '-'))

输出：

The original string is : 
 I love geeksforgeeks 

The left aligned string is : 
I love geeksforgeeks--------------------