动态import 变量表达式

// entry/build-profile.json5   通过变量表达是动态import har包 需要配置runtimeOnly 
"buildOption": { 
  "arkOptions": { 
    "runtimeOnly": { 
      "sources": [ 
      ], 
      "packages": [ 
        "harA" 
      ] 
    } 
  } 
}, 
​ 
​ 
// entry/src/main/ets/pages/Index.ets 
function getp(): string { 
return 'harA'; 
} 
​ 
let s = getp() 
import(s).then((ns: ESObject) => {console.log(`test dynamic ${ns.add(3, 5)}`)});