Google Earth Engine（GEE）——让点的个数等于number返回的布尔类型值为真？

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问题是这样的，有时候我们明明看到结果是一致的，但是为啥运算出来的东西却不一样呢？我们可以具体看看到底是为啥，有朋友闻到了这样的问题，我们可以具体看看这个问题：

这个结果是 True 我该怎么做？

修正前的代码：

var points=ee.Geometry.MultiPoint([[35.13382554493316, 42.01690078898458],
 [35.127720870209764, 42.023546081055784]])
Map.addLayer(points)
var p=points.coordinates().size()
print(p)
print(p==ee.Number(2))

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编辑

 这里我们所需要用到的就是我么判断是否相等的算法，具体算法见如下

ee.Algorithms.IsEqual(left, right)

Returns whether two objects are equal.返回两个对象是否相等。

Arguments:

left (Object, default: null)

right (Object, default: null)

Returns: Boolean

修正后代码：

var points=ee.Geometry.MultiPoint([[35.13382554493316, 42.01690078898458],
 [35.127720870209764, 42.023546081055784]])
Map.addLayer(points)
var p=points.coordinates().size()
print(p)
var ff= ee.Algorithms.IsEqual(p,ee.Number(2))

print(ff)

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编辑

当然除了用上面判断是否相等之外，还可以使用下面的函数来进行判断：条件，真假的情况是什么都可以的。

ee.Algorithms.If(condition, trueCase, falseCase)

Selects one of its inputs based on a condition, similar to an if-then-else construct.

Arguments:

condition (Object, default: null):

The condition that determines which result is returned. If this is not a boolean, it is interpreted as a boolean by the following rules:

• Numbers that are equal to 0 or a NaN are false.

• Empty strings, lists and dictionaries are false.

• Null is false.

• Everything else is true.

trueCase (Object, default: null):

The result to return if the condition is true.

falseCase (Object, default: null):

The result to return if the condition is false.

Returns: Object

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