添加限制

TM

2020-12-15 100eca8176c938ab9bf3d8f6e7fac59a0a7f3834

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if(!self.Map || !self.Set || !self.Symbol) {
    importScripts('https://gw.alipayobjects.com/as/g/appx_release/deps/1.0.3/es6-set-map-symbol.js');
     }