去除Julia中字符串的开始和结束字符——chop()方法

chop()是 julia 中的一个内置函数，用于从指定的字符串删除最后一个字符。如果此函数使用 head 和 tail 参数，它将从字符串删除指定数量的第一个头部和最后一个尾部字符。

Syntax:
chop(s::AbstractString, head::Integer, tail::Integer)

Parameters:

• s::AbstractString: Specified string.
• head::Integer: Specified number which removes the starting characters of the string.
• tail::Integer: Specified number which removes the last characters of the string.

Returns: It returns the left part of the specified string after removal.

示例 1：

# Julia program to illustrate 
# the use of String chop() method
  
# Getting the removal part of the strings
println(chop("GeeksforGeeks"))
println(chop("GeeksforGeeks", head = 1, tail = 2))
println(chop("GeeksforGeeks", head = 5, tail = 5))
println(chop("GeeksforGeeks", head = 5, tail = 8))
println(chop("GeeksforGeeks", head = 13, tail = 13))

输出：

示例 2：

# Julia program to illustrate 
# the use of String chop() method
  
# Getting the removal part of the strings
println(chop("1-2-3-4-5-6"))
println(chop("1-2-3-4-5-6", head = 1, tail = 2))
println(chop("1-2-3-4-5-6", head = 3, tail = 5))
println(chop("1-2-3-4-5-6", head = 5, tail = 6))
println(chop("1-2-3-4-5-6", head = 11, tail = 11))

输出：