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ee.List.splice
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
从起始索引开始,从列表中移除指定数量的元素,并将其他列表的内容插入到该位置。如果 start 为负数,则从列表末尾开始反向计数。
用法 | 返回 |
---|
List.splice(start, count, other) | 列表 |
参数 | 类型 | 详细信息 |
---|
此:list | 列表 | |
start | 整数 | |
count | 整数 | |
other | 列表,默认值:null | |
示例
代码编辑器 (JavaScript)
// An ee.List object.
var list = ee.List([0, 1, 2, 3, 4]);
print('Original list', list);
// If "other" argument is null, elements at positions specified by "start" and
// "count" are deleted. Here, the 3rd element is removed.
print('Remove 1 element', list.splice({start: 2, count: 1, other: null}));
// If "start" is negative, the position is from the end of the list.
print('Remove 2nd from last element', list.splice(-2, 1));
// Deletes 3 elements starting at position 1.
print('Remove multiple sequential elements', list.splice(1, 3));
// Insert elements from the "other" list without deleting existing elements
// by specifying the insert "start" position and setting "count" to 0.
print('Insert new elements', list.splice(2, 0, ['X', 'Y', 'Z']));
// Replace existing elements with those from the "other" list by specifying the
// "start" position to replace and the "count" of proceeding elements. If
// length of "other" list is greater than "count", the remaining "other"
// elements are inserted, they do not replace existing elements.
print('Replace elements', list.splice(2, 3, ['X', 'Y', 'Z']));
Python 设置
如需了解 Python API 和如何使用 geemap
进行交互式开发,请参阅
Python 环境页面。
import ee
import geemap.core as geemap
Colab (Python)
# An ee.List object.
ee_list = ee.List([0, 1, 2, 3, 4])
print('Original list:', ee_list.getInfo())
# If "other" argument is None, elements at positions specified by "start" and
# "count" are deleted. Here, the 3rd element is removed.
print('Remove 1 element:',
ee_list.splice(start=2, count=1, other=None).getInfo())
# If "start" is negative, the position is from the end of the list.
print('Remove 2nd from last element:', ee_list.splice(-2, 1).getInfo())
# Deletes 3 elements starting at position 1.
print('Remove multiple sequential elements:', ee_list.splice(1, 3).getInfo())
# Insert elements from the "other" list without deleting existing elements
# by specifying the insert "start" position and setting "count" to 0.
print('Insert new elements:', ee_list.splice(2, 0, ['X', 'Y', 'Z']).getInfo())
# Replace existing elements with those from the "other" list by specifying the
# "start" position to replace and the "count" of proceeding elements. If
# length of "other" list is greater than "count", the remaining "other"
# elements are inserted, they do not replace existing elements.
print('Replace elements:', ee_list.splice(2, 3, ['X', 'Y', 'Z']).getInfo())
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最后更新时间 (UTC):2025-07-26。
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