Question

我有用nodeJS配置的python-shell。我试图通过调用回调函数从pythonShell返回。回调函数能够成功地控制从pythonShell记录结果，但是，我无法返回它。我相信这是因为PythonShell.run不支持返回。

// Python Invocation
exports.find = function (searchterm) {
  var PythonShell = require('python-shell');

  function callback (err, results) {
    console.log(results); //Exhibit A (logs successfully)
  }

  // PythonShell does not support return
  PythonShell.run('findAnswer.py', callback);

  //How do I return Exhibit A?
};

有任何关于此的提示将不胜感激

由于

Answer 1

您可以修改您的功能，如下所示

exports.find = function (searchterm, callback) {
  var PythonShell = require('python-shell');

  // PythonShell does not support return
  PythonShell.run('findAnswer.py', callback);
};

并使用如下：

var finds = require('modulename').find;

finds('search term', function(err, results){
 //do anything with results here
});

如何从外部脚本JavaScript回调

1 个答案: