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ee.FeatureCollection.getString
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根据您的偏好保存内容并对其进行分类。
从功能中提取属性。
| 用法 | 返回 |
|---|
FeatureCollection.getString(property) | 字符串 |
| 参数 | 类型 | 详细信息 |
|---|
此：object | 元素 | 要从中提取属性的要素。 |
property | 字符串 | 要提取的属性。 |
示例
代码编辑器 (JavaScript)
// A FeatureCollection with a string property value.
var fc = ee.FeatureCollection([]).set('string_property', 'Abies magnifica');
// Fetch the string property value as an ee.String object.
print('String property value as ee.String', fc.getString('string_property'));
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)
# A FeatureCollection with a string property value.
fc = ee.FeatureCollection([]).set('string_property', 'Abies magnifica')
# Fetch the string property value as an ee.String object.
print('String property value as ee.String:',
fc.getString('string_property').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\u003e\u003ccode\u003egetString()\u003c/code\u003e extracts a string property value from a FeatureCollection.\u003c/p\u003e\n"],["\u003cp\u003eThe method requires the FeatureCollection object and the property name as input.\u003c/p\u003e\n"],["\u003cp\u003eThe extracted property value is returned as an ee.String object.\u003c/p\u003e\n"],["\u003cp\u003eCode examples demonstrate property extraction in both JavaScript and Python.\u003c/p\u003e\n"]]],["The core function described is `getString(property)`, used to extract a string property from a feature. It takes two inputs: the feature itself and the name of the desired property (string). The function returns the property's value as a string. The provided examples demonstrate how to use `getString` in both JavaScript and Python to retrieve the \"string_property\" from a FeatureCollection, with the property set as 'Abies magnifica'.\n"],null,["# ee.FeatureCollection.getString\n\nExtract a property from a feature.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------------------|---------|\n| FeatureCollection.getString`(property)` | String |\n\n| Argument | Type | Details |\n|----------------|---------|-------------------------------------------|\n| this: `object` | Element | The feature to extract the property from. |\n| `property` | String | The property to extract. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// A FeatureCollection with a string property value.\nvar fc = ee.FeatureCollection([]).set('string_property', 'Abies magnifica');\n\n// Fetch the string property value as an ee.String object.\nprint('String property value as ee.String', fc.getString('string_property'));\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# A FeatureCollection with a string property value.\nfc = ee.FeatureCollection([]).set('string_property', 'Abies magnifica')\n\n# Fetch the string property value as an ee.String object.\nprint('String property value as ee.String:',\n fc.getString('string_property').getInfo())\n```"]]
