很多时候我们会使用GEE中的很多波段，除了我们用rename()我们还可以用一个函数regexpRename进行
函数：
regexpRename(regex, replacement, all)
Renames the bands of an image by applying a regular expression replacement to the current band names. Any bands not matched by the regex will be copied over without renaming.
通过将正则表达式替换到当前的频段名称上，重命名一张图像的频段。任何没有被正则表达式匹配的波段将被复制过来而不被重命名。
Arguments:
this:input (Image):
The image containing the bands to rename.
regex (String):
A regular expression to match in each band name.
replacement (String):
The text with which to replace each match. Supports $n syntax for captured values.
all (Boolean, default: true):
If true, all matches in a given string will be replaced. Otherwise, only the first match in each string will be replaced.
Returns: Image
ee.Algor