将数组[ "GPPM:SAMPLING:SAMPLINGSETUP", "GPPM:SAMPLING:SAMPLINGSETUP:DELETE", "GPPM:SAMPLING:SAMPLINGSETUP:EXPORT", "GPPM:SAMPLING:SAMPLINGSETUP:HISTORY", "GPPM:SAMPLING:SAMPLINGSETUP:IMPORT", "GPPM:SAMPLING:SAMPLINGSETUP:QUERY", "GPPM:SAMPLING:SAMPLINGSETUP:SETUP", "GPPM:SAMPLING:SAMPLINGSETUP:SWITCH", "GPPM:SAMPLING:SAMPLINGSETUP:VIEW", "GPPM:SAMPLING:SAMPLINGSETUP:TARGETEQ", "GPPM:SAMPLING:SAMPLINGVIEW", "GPPM:SAMPLING:SAMPLINGVIEW:TARGETEQ", "GPPM:SABCLING:SAMPLINGVIEW", "GPPM:SABCLING:SAMPLINGVIEW:TARGETEQ", "GPPM:EFGLING:SAMPLINGVIEW", "GPPM:EFGLING:SAMPLINGVIEW:TARGETEQ", ]转化为[ "DELETE", "EXPORT", "HISTORY", "IMPORT", "QUERY", "SETUP", "SWITCH", "VIEW", "TARGETEQ", "TARGETEQ", "TARGETEQ", "TARGETEQ", ]

根据给定的数组，你想要将每个元素中的最后一个冒号后的子字符串提取出来，形成一个新的数组。以下是一个示例代码来实现这个转换：

const array = [
  "GPPM:SAMPLING:SAMPLINGSETUP",
  "GPPM:SAMPLING:SAMPLINGSETUP:DELETE",
  "GPPM:SAMPLING:SAMPLINGSETUP:EXPORT",
  "GPPM:SAMPLING:SAMPLINGSETUP:HISTORY",
  "GPPM:SAMPLING:SAMPLINGSETUP:IMPORT",
  "GPPM:SAMPLING:SAMPLINGSETUP:QUERY",
  "GPPM:SAMPLING:SAMPLINGSETUP:SETUP",
  "GPPM:SAMPLING:SAMPLINGSETUP:SWITCH",
  "GPPM:SAMPLING:SAMPLINGSETUP:VIEW",
  "GPPM:SAMPLING:SAMPLINGSETUP:TARGETEQ",
  "GPPM:SAMPLING:SAMPLINGVIEW",
  "GPPM:SAMPLING:SAMPLINGVIEW:TARGETEQ",
  "GPPM:SABCLING:SAMPLINGVIEW",
  "GPPM:SABCLING:SAMPLINGVIEW:TARGETEQ",
  "GPPM:EFGLING:SAMPLINGVIEW",
  "GPPM:EFGLING:SAMPLINGVIEW:TARGETEQ"
];

const transformedArray = array.map(item => {
  const lastIndex = item.lastIndexOf(':');
  return item.slice(lastIndex + 1);
});

console.log(transformedArray);

这段代码将会输出转换后的数组：

[
  "SAMPLINGSETUP",
  "DELETE",
  "EXPORT",
  "HISTORY",
  "IMPORT",
  "QUERY",
  "SETUP",
  "SWITCH",
  "VIEW",
  "TARGETEQ",
  "SAMPLINGVIEW",
  "TARGETEQ",
  "SAMPLINGVIEW",
  "TARGETEQ",
  "SAMPLINGVIEW",
  "TARGETEQ"
]

在代码中，我们使用 `lastIndexOf` 方法找到每个元素中最后一个冒号的索引，然后使用 `slice` 方法将其后的子字符串提取出来。最后，我们使用 `map` 方法将转换后的结果存储在新的数组中。