如何使用初始值Validators初始化formcontrol。必需和禁用:使用FormBuilder为true?

https://angular.io/api/forms/FormControl 我检查了angular网站上的FormControl页面,看看它是否有一个构造函数,允许我设置初始值、禁用模式和验证程序,但它似乎没有这样的构造函数。所以我的问题是,有没有可能初始化一个有值、被禁用并且设置了Validators.required的formcontrolname?

这就是我目前所尝试的:

this.temperatureSettingForm = fb.group({
  'country' : [{value: '', disabled: true},Validators.required],
  'cities' : {value: '', disabled: true},
  'checkBox' : {value: false, disabled: true},
  'months': fb.group({
  'january' : {value: '', disabled: true},
  'february' : {value: '', disabled: true},
  'march' : {value: '', disabled: true},
  'april' : {value: '', disabled: true},
  'may' : {value: '', disabled: true},
  'june' : {value: '', disabled: true},
  'july' : {value: '', disabled: true},
  'august' : {value: '', disabled: true},
  'september' : {value: '', disabled: true},
  'october' : {value: '', disabled: true},
  'november' : {value: '', disabled: true},
  'december' : {value: '', disabled: true}
  })
});