angular4 获取wifi列表中文显示乱码问题的解决

import { Pipe, PipeTransform, Injectable } from "@angular/core";
// escape在管道中需要定义一下，要不然编译报错。
declare function escape(s: string): string;
@Pipe({
 name: "ascPipe"
})
@Injectable()
export class AscIIToGBKPipe implements PipeTransform {
 transform(value: any) {
 console.log(value);
 if (value) {
 let str = escape(value);
 let dec = decodeURIComponent(str);
 return dec;
 } else {
 return value;
 }
 }
}