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2025 年 4 月 15 日前註冊使用 Earth Engine 的非商業專案，都必須
驗證非商業用途資格，才能繼續存取 Earth Engine。
ee.Dictionary.getString
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
從字典中擷取具名字串值。
| 用量 | 傳回 |
|---|
Dictionary.getString(key) | 字串 |
| 引數 | 類型 | 詳細資料 |
|---|
這個：dictionary | 字典 | |
key | 字串 | |
範例
程式碼編輯器 (JavaScript)
// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
var dict = ee.Dictionary({
B1: 182,
B2: 219,
B3: 443,
Region: 'The Forest of Nisene Marks State Park'
});
print('The "Region" value as an ee.String object', dict.getString('Region'));
Python 設定
請參閱
Python 環境頁面，瞭解 Python API 和如何使用 geemap 進行互動式開發。
import ee
import geemap.core as geemap
Colab (Python)
# A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
dic = ee.Dictionary({
'B1': 182,
'B2': 219,
'B3': 443,
'Region': 'The Forest of Nisene Marks State Park'
})
print('The "Region" value as an ee.String object:',
dic.getString('Region').getInfo(), sep='\n')
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上次更新時間：2025-07-26 (世界標準時間)。
[null,null,["上次更新時間：2025-07-26 (世界標準時間)。"],[[["\u003cp\u003e\u003ccode\u003eDictionary.getString()\u003c/code\u003e extracts a named string value associated with a given key from an Earth Engine dictionary.\u003c/p\u003e\n"],["\u003cp\u003eThe function takes the dictionary and the key string as input and returns the corresponding string value.\u003c/p\u003e\n"],["\u003cp\u003eIt is helpful for accessing specific string properties within dictionaries, such as those generated from \u003ccode\u003eee.Image.reduceRegion\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eUsage is demonstrated through JavaScript and Python examples within the documentation.\u003c/p\u003e\n"]]],[],null,["# ee.Dictionary.getString\n\nExtracts a named string value from a dictionary.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------|---------|\n| Dictionary.getString`(key)` | String |\n\n| Argument | Type | Details |\n|--------------------|------------|---------|\n| this: `dictionary` | Dictionary | |\n| `key` | String | |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).\nvar dict = ee.Dictionary({\n B1: 182,\n B2: 219,\n B3: 443,\n Region: 'The Forest of Nisene Marks State Park'\n});\n\nprint('The \"Region\" value as an ee.String object', dict.getString('Region'));\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 dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).\ndic = ee.Dictionary({\n 'B1': 182,\n 'B2': 219,\n 'B3': 443,\n 'Region': 'The Forest of Nisene Marks State Park'\n})\n\nprint('The \"Region\" value as an ee.String object:',\n dic.getString('Region').getInfo(), sep='\\n')\n```"]]
