javascript - 如何在函数中访问变量

我如何访问在函数中定义的变量，如下所示：

var functionVar = function(){
  this.var = 1;
}

console.log(functionVar().var); //MH - obviously this doesn't work, but I'm looking for the command that will log that variable

最佳答案

您可以像这样访问

var functionVar = function(){
  this.var = 1;
}

 var o = new functionVar();
 alert(o.var)​