ee.Dictionary.rename

重命名字典中的元素。

用法返回
Dictionary.rename(from, to, overwrite)字典
参数类型详细信息
此:dictionary字典
from列表要重命名的键的列表。
to列表“from”参数中列出的键的新名称的列表。必须与“from”列表的长度相同。
overwrite布尔值,默认值:false允许覆盖同名的现有属性。

示例

代码编辑器 (JavaScript)

// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
var dict = ee.Dictionary({
  B1: 182,
  B2: 219,
  B3: 443
});

// Define from-to key name lists for selected keys.
var from = ['B2', 'B3'];
var to = ['Band_2', 'Band_3'];
print('Renamed keys', dict.rename(from, to));

print('Overwrite existing key names, e.g. B3 becomes B1',
      dict.rename({from: ['B3'], to: ['B1'], overwrite: true}));

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 dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
dic = ee.Dictionary({
    'B1': 182,
    'B2': 219,
    'B3': 443
})

# Define from-to key name lists for selected keys.
frm = ['B2', 'B3']
to = ['Band_2', 'Band_3']
print('Renamed keys:', dic.rename(frm, to).getInfo())

dic_overwrite = dic.rename(**{'from': ['B3'], 'to': ['B1'], 'overwrite': True})
print('Overwrite existing key names, e.g. B3 becomes B1:',
      dic_overwrite.getInfo())