export const getType = function (value: any): string { const typeofs = Object.prototype.toString.call(value); switch (typeofs) { case '[object Number]': return 'Number'; // NaN Infinity 也是Number类型 case '[object String]': return 'String'; case '[object Boolean]': return 'Boolean'; case '[object Null]': return 'Null'; case '[object Undefined]': return 'Undefined'; case '[object Array]': return 'Array'; case '[object Object]': return 'Object'; default: return typeofs; } };