wxml:

<form bindsubmit="formsubmit">
    <view style="width: 90%;display: flex;margin-left: 5%;">
      <view class="text1">昵称：</view>
      <input style="width: 150px;margin-left: 30px;margin-top: 30px;" type="nickname" placeholder="请输入昵称" name="nickname" />
    </view>
  </form>

js

  // 昵称
  formsubmit(e) {
    const nickName = e.detail.value.nickname
    console.log("nickName", nickName)
    // do something
  },

效果：