classConstantClass{
 /* 上面的代码在JavaScript中定义了各种变量和常量。这些变量用于存储与地球直径、不同元素的偏移、图像和数据文件的 URL 以及事件类型相关的值。该代码还包括 gribs 的文件名数组，它们是天气预报文件。 */
 constructor() {
 this.EarthDiameter = 16;
 this.EarthOffset = 0.37;
 this.IslandOffset = 0.1;
 this.SeaLevelOffset = 0.03;
 this.ImocaOffset = 0.03;
 this.EarthDiameterKM = 12742;
 this.MoonDiameterKM = 3474;
 this.MoonToEarthKM = 384467;
 this.EXPLORE = 0;
 this.VENDEEGLOBE = 1;
 this.QUIZZ = 2;
 this.GribsName = [‘w1211101200.png’, ‘w1211101800.png’, ‘w1211110000.png’, ‘w1211110600.png’, ‘w1211111200.png’, ‘w1211111800.png’, ‘w1211120000.png’, ‘w1211120600.png’, ‘w1211121200.png’, ‘w1211121800.png’, ‘w1211130000.png’, ‘w1211130600.png’, ‘w1211131200.png’, ‘w1211131800.png’, ‘w1211140000.png’, ‘w1211140600.png’, ‘w1211141200.png’, ‘w1211141800.png’, ‘w1211150000.png’, ‘w1211150600.png’, ‘w1211151200.png’, ‘w1211151800.png’, ‘w1211160000.png’, ‘w1211160600.png’, ‘w1211161200.png’, ‘w1211161800.png’, ‘w1211170000.png’, ‘w1211170600.png’, ‘w1211171200.png’, ‘w1211171800.png’, ‘w1211180000.png’, ‘w1211180600.png’, ‘w1211181200.png’, ‘w1211181800.png’, ‘w1211190000.png’, ‘w1211190600.png’, ‘w1211191200.png’, ‘w1211191800.png’, ‘w1211200000.png’, ‘w1211200600.png’, ‘w1211201200.png’, ‘w1211201800.png’, ‘w1211210000.png’, ‘w1211210600.png’, ‘w1211211200.png’, ‘w1211211800.png’, ‘w1211220000.png’, ‘w1211220600.png’, ‘w1211221200.png’, ‘w1211221800.png’, ‘w1211230000.png’, ‘w1211230600.png’, ‘w1211231200.png’, ‘w1211231800.png’, ‘w1211240000.png’, ‘w1211240600.png’, ‘w1211241200.png’, ‘w1211241800.png’, ‘w1211250000.png’, ‘w1211250600.png’, ‘w1211251200.png’, ‘w1211251800.png’, ‘w1211260000.png’, ‘w1211260600.png’, ‘w1211261200.png’, ‘w1211261800.png’, ‘w1211270000.png’, ‘w1211270600.png’, ‘w1211271200.png’, ‘w1211271800.png’, ‘w1211280000.png’, ‘w1211280600.png’, ‘w1211281200.png’, ‘w1211281800.png’, ‘w1211290000.png’, ‘w1211290600.png’, ‘w1211291200.png’, ‘w1211291800.png’, ‘w1211300000.png’, ‘w1211300600.png’, ‘w1211301200.png’, ‘w1211301800.png’, ‘w1212010000.png’, ‘w1212010600.png’, ‘w1212011200.png’, ‘w1212011800.png’, ‘w1212020000.png’, ‘w1212020600.png’, ‘w1212021200.png’, ‘w1212021800.png’, ‘w1212030000.png’, ‘w1212030600.png’, ‘w1212031200.png’, ‘w1212031800.png’, ‘w1212040000.png’, ‘w1212040600.png’, ‘w1212041200.png’, ‘w1212041800.png’, ‘w1212050000.png’, ‘w1212050600.png’, ‘w1212051200.png’, ‘w1212051800.png’, ‘w1212060000.png’, ‘w1212060600.png’, ‘w1212061200.png’, ‘w1212061800.png’, ‘w1212070000.png’, ‘w1212070600.png’, ‘w1212071200.png’, ‘w1212071800.png’, ‘w1212080000.png’, ‘w1212080600.png’, 'w1212081200.p