uniapp判断第三方应用是否存在并打开应用

if(plus.runtime.isApplicationExist({pname:'com.s,action:'weixin://'})){
console.log("应用已安装");

if ( plus.os.name == "Android" ) { plus.runtime.launchApplication( {pname:"com.android.browser" ,extra:{url:"http://www.html5plus.org"}}, function ( e ) { alert( "Open system default browser failed: " + e.message ); } ); } else if ( plus.os.name == "iOS" ) { plus.runtime.launchApplication( {action:"http://www.html5plus.org"}, function ( e ) { alert( "Open system default browser failed: " + e.message ); } ); }

}else{
console.log("应用未安装");
}