I have also written several form applications, all of which can be run. I don"t know what happened to this form, but it didn"t respond when I clicked on the button. There was no error in the console. I really can"t see what the problem is. Look forward to God"s rescue

wxml

<view>
  <form bindsubmit="formSubmit" bindreset="formReset">
    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input class="placeholder" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>
    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input type="number" maxlength="11" class="placeholder" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>
    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input class="placeholder" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>
    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input class="placeholder" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>

    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input class="placeholder" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>

    <view class="itemContainer">
      <view class="iconAndText">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
      <view class="placeholderCon">
        <input class="placeholder" type="number" placeholder-style="text-align:right" placeholder="" auto-focus/>
      </view>
    </view>
    <view class="itemContainerDetail">
      <view class="iconAndTextDetail">
        <image class="icons" src="../../images/must_write.png"></image>
        <view class="icon_text"></view>
      </view>
    </view>
    <view class="itemContainerDetailDetail">
      <view class="DetailDetail">
        <textarea class="placeholderDetail" placeholder-style="text-align:right" placeholder="" name="detail" />
      </view>
    </view>
    <view class="btn-area">
      <button class="sub_but" formType="submit"></button>
    </view>
  </form>
</view>

wxss

.icons {
  width: 30rpx;
  height: 30rpx;
  padding: 15rpx 15rpx 15rpx 15rpx;
}

.grayCon {
  background-color: -sharpfff;
}

 .itemContainer {
  display: flex;
  background-color: -sharpfff;
  justify-content: space-between;
  border-bottom: 1rpx solid -sharpe5e5e5;
  padding: 10rpx 25rpx;
} 
.itemContainerDetail {
  display: flex;
  background-color: -sharpfff;
  justify-content: space-between;
  /* border-bottom: 1rpx solid -sharpe5e5e5; */
  padding: 10rpx 25rpx;
}
.itemContainerDetailDetail{
  display: flex;
  background-color: -sharpfff;
  /* justify-content: space-between; */
  border-bottom: 1rpx solid -sharpe5e5e5;
  padding: 10rpx 25rpx;
  border-radius: 13rpx;
}
 .DetailDetail{
  padding: 30rpx;
} 

.icon_text {
  padding: 15rpx;
  font-size: 33rpx;
}

.iconAndText {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
.iconAndTextDetail{
  display: flex;
  flex-direction: row;
  /* justify-content: space-between; */
}
 .placeholderCon{
  display: flex;
  flex-direction: row;
  width: 480rpx;
  align-items: center;
} 
.placeholder {
  font-size: 33rpx;
  width: 480rpx;
}
.placeholderDetail {
  font-size: 33rpx;
  width: 650rpx;
}
.sub_but{
  margin-top: 20rpx;
  width: 80%;
  color: -sharpfff;
  background-color:red;
}

js

  formSubmit: function (e) {
    console.log("formsubmit:", e.detail.value)
  },