公告：所有在
2025 年 4 月 15 日之前注册使用 Earth Engine 的非商业项目都必须
验证是否符合非商业性质的资格条件，才能继续使用 Earth Engine。
ee.Number.getInfo
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。
从服务器检索此对象的值。
如果未提供回调函数，系统会同步发出请求。如果提供了回调，系统会异步发出请求。
建议使用异步模式，因为同步模式会在等待服务器时停止所有其他代码（例如 EE 代码编辑器界面）。如需发出异步请求，请优先使用 evaluate() 而非 getInfo()。
返回此对象的计算值。
| 用法 | 返回 |
|---|
Number.getInfo(callback) | 对象 |
| 参数 | 类型 | 详细信息 |
|---|
this：computedobject | ComputedObject | ComputedObject 实例。 |
callback | 函数（可选） | 可选的回调。如果未提供，则调用将同步进行。 |
示例
Code Editor (JavaScript)
/**
* WARNING: this function transfers data from Earth Engine servers to the
* client. Doing so can negatively affect request processing and client
* performance. Server-side options should be used whenever possible.
* Learn more about the distinction between server and client:
* https://developers.google.com/earth-engine/guides/client_server
*/
// A server-side ee.Number object.
var numberServer = ee.Number(10.3);
// Use evaluate to transfer server-side number to the client.
var numberClient = numberServer.getInfo();
print('Client-side primitive data type', typeof numberClient); // number
print('Client-side number', numberClient); // 10.3
print('Client-side number used in expression', numberClient + 10); // 20.3
Python 设置
如需了解 Python API 以及如何使用 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)
"""WARNING: this function transfers data from Earth Engine servers to the
client. Doing so can negatively affect request processing and client
performance. Server-side options should be used whenever possible.
Learn more about the distinction between server and client:
https://developers.google.com/earth-engine/guides/client_server
"""
# A server-side ee.Number object.
number_server = ee.Number(10.3)
number_client = number_server.getInfo()
print('Client-side primitive data type:', type(number_client)) # float
print('Client-side number:', number_client) # 10.3
print('Client-side number used in expression:', number_client + 10) # 20.3
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)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003eRetrieves the computed value of an object from the Earth Engine server, transferring it to the client.\u003c/p\u003e\n"],["\u003cp\u003eOffers synchronous and asynchronous modes, with the asynchronous mode (using \u003ccode\u003eevaluate()\u003c/code\u003e) being preferred for better performance.\u003c/p\u003e\n"],["\u003cp\u003eSynchronous requests using \u003ccode\u003egetInfo()\u003c/code\u003e can block other code execution while waiting for the server response.\u003c/p\u003e\n"],["\u003cp\u003eIt's important to be mindful of the potential performance impact of transferring server-side data to the client.\u003c/p\u003e\n"]]],[],null,["# ee.Number.getInfo\n\n\u003cbr /\u003e\n\nRetrieves the value of this object from the server.\n\n\u003cbr /\u003e\n\nIf no callback function is provided, the request is made synchronously. If a callback is provided, the request is made asynchronously.\n\nThe asynchronous mode is preferred because the synchronous mode stops all other code (for example, the EE Code Editor UI) while waiting for the server. To make an asynchronous request, evaluate() is preferred over getInfo().\n\nReturns the computed value of this object.\n\n| Usage | Returns |\n|--------------------------------|---------|\n| Number.getInfo`(`*callback*`)` | Object |\n\n| Argument | Type | Details |\n|------------------------|--------------------|------------------------------------------------------------------------|\n| this: `computedobject` | ComputedObject | The ComputedObject instance. |\n| `callback` | Function, optional | An optional callback. If not supplied, the call is made synchronously. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n/**\n * WARNING: this function transfers data from Earth Engine servers to the\n * client. Doing so can negatively affect request processing and client\n * performance. Server-side options should be used whenever possible.\n * Learn more about the distinction between server and client:\n * https://developers.google.com/earth-engine/guides/client_server\n */\n\n// A server-side ee.Number object.\nvar numberServer = ee.Number(10.3);\n\n// Use evaluate to transfer server-side number to the client.\nvar numberClient = numberServer.getInfo();\nprint('Client-side primitive data type', typeof numberClient); // number\nprint('Client-side number', numberClient); // 10.3\nprint('Client-side number used in expression', numberClient + 10); // 20.3\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\"\"\"WARNING: this function transfers data from Earth Engine servers to the\nclient. Doing so can negatively affect request processing and client\nperformance. Server-side options should be used whenever possible.\nLearn more about the distinction between server and client:\nhttps://developers.google.com/earth-engine/guides/client_server\n\"\"\"\n\n# A server-side ee.Number object.\nnumber_server = ee.Number(10.3)\n\nnumber_client = number_server.getInfo()\nprint('Client-side primitive data type:', type(number_client)) # float\nprint('Client-side number:', number_client) # 10.3\nprint('Client-side number used in expression:', number_client + 10) # 20.3\n```"]]
