在 Julia 中查找字符串中下一次出现的模式 – findnext() 方法

findnext()是 julia 中的一个内置函数，用于从指定位置开始返回指定字符串中指定模式的下一次出现。

句法：

findnext(pattern::AbstractString, string::AbstractString, start::Integer)

参数：

• pattern::AbstractString:指定的模式
• 字符串::AbstractString：指定字符串
• start::Integer：这是要执行匹配的起始位置。

返回：它返回从指定位置开始的指定字符串中指定模式的下一次出现。示例 1：

Python

# Julia program to illustrate
# the use of String findnext() method
  
# Here the pattern is "g", String is
# "geeks" and position is 1
Println(findnext("g", "geeks", 1))
 
# Here the pattern is "G", String is
# "GeeksforGeeks" and position is 6
Println(findnext("G", "GeeksforGeeks", 6))
 
# Here the pattern is "e", String is
# "GeeksforGeeks" and position is 5
Println(findnext("G", "GeeksforGeeks", 5))
 
# Here the pattern is "k", String is
# "GeeksforGeeks" and position is 2
Println(findnext("G", "GeeksforGeeks", 2))

输出：

示例 2：

Python

# Julia program to illustrate
# the use of String findnext() method
  
# Here the pattern is "23", String is
# "12345" and position is 1
Println(findnext("23", "12345", 1))
 
# Here the pattern is "23", String is
# "12345" and position is 2
Println(findnext("23", "12345", 2))
 
# Here the pattern is "3", String is
# "12345" and position is 5
Println(findnext("3", "12345", 5))
 
# Here the pattern is "123", String is
# "123123123" and position is 4
Println(findnext("123", "123123123", 4))

输出：