       make.size.equalTo(CGSize(width: 27, height: 27))
     })
     
-    // 输入宽的大小
+    // 输入框的大小
     self.inputTextView = JChatMessageInputView()
     self.inputTextView.layer.borderWidth = 0.5
     self.inputTextView.layer.borderColor = UIColor.lightGray.cgColor

    inputTextView?.snp.makeConstraints({ (make) -> Void in
      make.right.equalTo(self.showMoreBtn.snp.left).offset(-5)
      make.left.equalTo(self.switchBtn.snp.right).offset(5)
      make.top.equalTo(inputWrapView).offset(5)
      make.bottom.equalTo(inputWrapView).offset(-5)
      make.height.greaterThanOrEqualTo(30)
      make.height.lessThanOrEqualTo(100)
    })
    self.updateInputTextViewHeight(self.inputTextView)
    

  func updateInputTextViewHeight(_ textView: UITextView) {
    let textContentH = textView.contentSize.height
    print("output：\(textContentH)")
    let textHeight = textContentH > 35 ? (textContentH<100 ? textContentH:100):31
    

    UIView.animate(withDuration: 0.2) { () -> Void in
      self.inputTextView.snp.updateConstraints({ (make) -> Void in
        make.right.equalTo(self.showMoreBtn.snp.left).offset(-5)
        make.left.equalTo(self.switchBtn.snp.right).offset(5)
        make.top.equalTo(self.inputWrapView).offset(5)
        make.bottom.equalTo(self.inputWrapView).offset(-5)
        make.height.greaterThanOrEqualTo(30)
        make.height.lessThanOrEqualTo(100)
        make.height.equalTo(textHeight)
      })
    }
