获取 Julia 中指定字符串模式的最后一次出现 – findlast() 方法

findlast()是 julia 中的一个内置函数，用于返回指定字符串中指定模式的最后一次出现。

Syntax:
findlast(Pattern::AbstractString, String::AbstractString)

Parameters:

• Pattern: Specified pattern to be searched
• String: Specified string

Returns: It returns a number in the format of First_number:Second_number. Where first number is the last position of occurrence of the pattern in the specified string whereas second number is the position in the string where the pattern ends.

示例 1：

# Julia program to illustrate 
# the use of String findlast() method
  
# Here the pattern is "e" and String is
# "geeks"
Println(findlast("e", "geeks"))
  
# Here the pattern is "eek" and String is
# "geeksforgeeks"
Println(findlast("eek", "geeksforgeeks"))
  
# Here the pattern is "s" and String is
# "geeks"
Println(findlast("s", "geeks"))
  
# Here the pattern is "geeks" and String is
# "geeksforgeeks"
Println(findlast("geeks", "geeksforgeeks"))

输出：
示例 2：

# Julia program to illustrate 
# the use of String findlast() method
   
# Here the pattern is "4" and String is
# "2468"
Println(findlast("4", "2468"))
   
# Here the pattern is "234" and String is
# "123452346"
Println(findlast("234", "123452346"))
   
# Here the pattern is "45" and String is
# "14523456"
Println(findlast("45", "14523456"))

输出：