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ee.Number.bitwiseAnd
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计算输入值的按位 AND。
| 用法 | 返回 |
|---|
Number.bitwiseAnd(right) | 数字 |
| 参数 | 类型 | 详细信息 |
|---|
此：left | 数字 | 左侧值。 |
right | 数字 | 右侧值。 |
示例
代码编辑器 (JavaScript)
/**
* Unsigned 8-bit type example.
*
* 25 as binary: 00011001
* 21 as binary: 00010101
* Both digits 1?: 00010001
*
* 00010001 is unsigned 8-bit binary for 17.
*/
print(ee.Number(25).bitwiseAnd(21));
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)
"""Unsigned 8-bit type example.
25 as binary: 00011001
21 as binary: 00010101
Both digits 1?: 00010001
00010001 is unsigned 8-bit binary for 17.
"""
print(ee.Number(25).bitwiseAnd(21).getInfo())
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-26。
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003eThis function calculates the bitwise AND of two numbers, \u003ccode\u003eleft\u003c/code\u003e and \u003ccode\u003eright\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe result is a new number where each bit is 1 only if the corresponding bits in both input numbers are 1.\u003c/p\u003e\n"],["\u003cp\u003eIt's useful for manipulating binary representations of numbers, like extracting specific bits or applying masks.\u003c/p\u003e\n"],["\u003cp\u003eThe example demonstrates how the function works with unsigned 8-bit numbers, calculating the bitwise AND of 25 and 21.\u003c/p\u003e\n"],["\u003cp\u003eYou can use this function in both JavaScript and Python within the Google Earth Engine environment.\u003c/p\u003e\n"]]],["The `bitwiseAnd` method computes the bitwise AND between two numbers. It takes a `right` number as input and operates on a `left` number (this). The function returns a number representing the result of the AND operation. For example, the bitwise AND of 25 and 21 yields 17, demonstrated by their binary representations: `00011001` AND `00010101` results in `00010001`. The function is available in JavaScript and Python APIs.\n"],null,["# ee.Number.bitwiseAnd\n\nCalculates the bitwise AND of the input values.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------|---------|\n| Number.bitwiseAnd`(right)` | Number |\n\n| Argument | Type | Details |\n|--------------|--------|-----------------------|\n| this: `left` | Number | The left-hand value. |\n| `right` | Number | The right-hand value. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n/**\n * Unsigned 8-bit type example.\n *\n * 25 as binary: 00011001\n * 21 as binary: 00010101\n * Both digits 1?: 00010001\n *\n * 00010001 is unsigned 8-bit binary for 17.\n */\n\nprint(ee.Number(25).bitwiseAnd(21));\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\"\"\"Unsigned 8-bit type example.\n\n25 as binary: 00011001\n21 as binary: 00010101\nBoth digits 1?: 00010001\n\n00010001 is unsigned 8-bit binary for 17.\n\"\"\"\n\nprint(ee.Number(25).bitwiseAnd(21).getInfo())\n```"]]
