react下input聚焦

<Input
                      style={{ width: '300px' }}
                      className={hideShow ? styles.inpHide : styles.inpShow}
                      value={valueIpt}
                      ref={input => (this.textInput = input)}
                      onChange={this.onChangeIpt}
                      onBlur={this.changeNameSave}
                      onFocus={this.handleFocus}
                    />

  handleDBClick = () => {

    this.setState({
      hideShow: false,
      valueIpt: this.state.valueSel
    }, () => {
      this.textInput.focus()
    })

  }

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