第四章 GEE的数据类型(String_Number_Dictionary_List_Array)

一、String

1.1创建 ee.String()

var string = ee.String("this is a string")
print(string)

1.2 修改 string.cat()          string.replace()

var string1 = ee.String("I am the first.")
var string2 = ee.String("I am the second.")
var cat_string = string1.cat(string2)
print(cat_string)

var string1 = ee.String("GDUT")
var string2 = string1.replace("D","S")
print(string2)

1.3 段落 string.split()          string.match()

var string1 = ee.String("A_B_C_D_E")
var string2 = string1.split("_")
print(string2)

var string1 = ee.String("A B C D E")
var string2 = string1.match("C","i")
print(string2)

 

1.4 查询 string.slice()        string.length()

var string1 = ee.String("1234 5678 91123")
var string2 = string1.slice(5 10)
print(string2 )

  

var string1 = ee.String("ABCD 1234")
var string2 = string1.length()
print(string1,string2)

二、Number

2.1 创建ee.Number()

var number = ee.Number(497615645)
print(number)

2.2 修改number.uint8() number.toUint8() number.int8() number.toInt8() ......

var number1 = ee.Number(-5.69)
var number2 = number1.int8()
var number3 = number1.toInt8()
print(number1,number2,number3)

2.3 比较number.eq() number.neq() ...... number.and() number.or() ee.Algorithms.IsEqua() ......

var number1 =