获取拆分字符串数组的最后一个元素

string = "hello.world"
split_string = string.split(".")
last_element = split_string[-1]
print(last_element)

const string = "hello.world";
const splitString = string.split(".");
const lastElement = splitString[splitString.length - 1];
console.log(lastElement);

String string = "hello.world";
String[] splitString = string.split("\\.");
String lastElement = splitString[splitString.length - 1];
System.out.println(lastElement);

string s = "hello.world";
string[] splitString = s.Split('.');
string lastElement = splitString[splitString.Length - 1];
Console.WriteLine(lastElement);