ee.List.splice
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Lưu và phân loại nội dung dựa trên lựa chọn ưu tiên của bạn.
Bắt đầu từ chỉ mục bắt đầu, xoá các phần tử đếm khỏi danh sách và chèn nội dung của phần tử khác vào vị trí đó. Nếu start là số âm, thì hàm sẽ đếm ngược từ cuối danh sách.
Cách sử dụng | Giá trị trả về |
---|
List.splice(start, count, other) | Danh sách |
Đối số | Loại | Thông tin chi tiết |
---|
this: list | Danh sách | |
start | Số nguyên | |
count | Số nguyên | |
other | Danh sách, mặc định: null | |
Ví dụ
Trình soạn thảo mã (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']));
Thiết lập Python
Hãy xem trang
Môi trường Python để biết thông tin về API Python và cách sử dụng geemap
cho quá trình phát triển tương tác.
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())
Trừ phi có lưu ý khác, nội dung của trang này được cấp phép theo Giấy phép ghi nhận tác giả 4.0 của Creative Commons và các mẫu mã lập trình được cấp phép theo Giấy phép Apache 2.0. Để biết thông tin chi tiết, vui lòng tham khảo Chính sách trang web của Google Developers. Java là nhãn hiệu đã đăng ký của Oracle và/hoặc các đơn vị liên kết với Oracle.
Cập nhật lần gần đây nhất: 2025-07-26 UTC.
[null,null,["Cập nhật lần gần đây nhất: 2025-07-26 UTC."],[[["\u003cp\u003e\u003ccode\u003eList.splice()\u003c/code\u003e modifies a list by removing elements and inserting new ones at a specified position.\u003c/p\u003e\n"],["\u003cp\u003eIt takes \u003ccode\u003estart\u003c/code\u003e, \u003ccode\u003ecount\u003c/code\u003e, and \u003ccode\u003eother\u003c/code\u003e as arguments to control the modification process.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003estart\u003c/code\u003e determines the starting position for removal/insertion, while \u003ccode\u003ecount\u003c/code\u003e determines the number of elements to remove.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eother\u003c/code\u003e provides the elements to insert; if \u003ccode\u003eother\u003c/code\u003e is null or None, elements are only removed.\u003c/p\u003e\n"],["\u003cp\u003eA negative \u003ccode\u003estart\u003c/code\u003e value counts backwards from the end of the list for positioning.\u003c/p\u003e\n"]]],[],null,["# ee.List.splice\n\nStarting at the start index, removes count elements from list and insert the contents of other at that location. If start is negative, it counts backwards from the end of the list.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------|---------|\n| List.splice`(start, count, `*other*`)` | List |\n\n| Argument | Type | Details |\n|--------------|---------------------|---------|\n| this: `list` | List | |\n| `start` | Integer | |\n| `count` | Integer | |\n| `other` | List, default: null | |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// An ee.List object.\nvar list = ee.List([0, 1, 2, 3, 4]);\nprint('Original list', list);\n\n// If \"other\" argument is null, elements at positions specified by \"start\" and\n// \"count\" are deleted. Here, the 3rd element is removed.\nprint('Remove 1 element', list.splice({start: 2, count: 1, other: null}));\n\n// If \"start\" is negative, the position is from the end of the list.\nprint('Remove 2nd from last element', list.splice(-2, 1));\n\n// Deletes 3 elements starting at position 1.\nprint('Remove multiple sequential elements', list.splice(1, 3));\n\n// Insert elements from the \"other\" list without deleting existing elements\n// by specifying the insert \"start\" position and setting \"count\" to 0.\nprint('Insert new elements', list.splice(2, 0, ['X', 'Y', 'Z']));\n\n// Replace existing elements with those from the \"other\" list by specifying the\n// \"start\" position to replace and the \"count\" of proceeding elements. If\n// length of \"other\" list is greater than \"count\", the remaining \"other\"\n// elements are inserted, they do not replace existing elements.\nprint('Replace elements', list.splice(2, 3, ['X', 'Y', 'Z']));\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# An ee.List object.\nee_list = ee.List([0, 1, 2, 3, 4])\nprint('Original list:', ee_list.getInfo())\n\n# If \"other\" argument is None, elements at positions specified by \"start\" and\n# \"count\" are deleted. Here, the 3rd element is removed.\nprint('Remove 1 element:',\n ee_list.splice(start=2, count=1, other=None).getInfo())\n\n# If \"start\" is negative, the position is from the end of the list.\nprint('Remove 2nd from last element:', ee_list.splice(-2, 1).getInfo())\n\n# Deletes 3 elements starting at position 1.\nprint('Remove multiple sequential elements:', ee_list.splice(1, 3).getInfo())\n\n# Insert elements from the \"other\" list without deleting existing elements\n# by specifying the insert \"start\" position and setting \"count\" to 0.\nprint('Insert new elements:', ee_list.splice(2, 0, ['X', 'Y', 'Z']).getInfo())\n\n# Replace existing elements with those from the \"other\" list by specifying the\n# \"start\" position to replace and the \"count\" of proceeding elements. If\n# length of \"other\" list is greater than \"count\", the remaining \"other\"\n# elements are inserted, they do not replace existing elements.\nprint('Replace elements:', ee_list.splice(2, 3, ['X', 'Y', 'Z']).getInfo())\n```"]]