Perl | splice()–多功能功能
在 Perl 中，splice()函数用于从数组中移除并返回一定数量的元素。可以插入元素列表来代替移除的元素。
语法:拼接(@数组、偏移量、长度、替换 _ 列表)
参数:
- @ array–the array under consideration.
- Offset–The offset of the element removal.
- Length–The number of elements to be removed from the offset (including the offset).
- Replace _ list- the list of elements that replace the removed elements.
例:
#!/usr/bin/perl
# an array of numbers from 0 to 7
@array = (0..7);
# Original array
print "Original Array: @array\n";
# splice() replaces elements from
# 2 to 4 with a to c
@array2 = splice(@array, 2, 3, (a..c));
# Printing the Updated Array
print("Elements of Updated \@array are @array\n");
# array2 contains elements removed
# from array i.e. 2, 3 and 4
print("Removed elements are @array2");
输出:
Original Array: 0 1 2 3 4 5 6 7
Elements of Updated @array are 0 1 a b c 5 6 7
Removed elements are 2 3 4
