public Builder clearWxId() {
                wxId_ = getDefaultInstance().getWxId();
                bitField0_ = (bitField0_ & ~0x00000001);
                onChanged();
                return this;
            }
<code>string wxId = 1;</code>

@return This builder for chaining.
wx-dump-admin/src/main/java/com/xcs/wx/protobuf/ChatRoomProto.java