modify dingding exception

Helius

2021-04-22 1972a71f2cd42f679aee9968c386044e7e98af30

 src/main/java/com/xcong/excoin/modules/contract/parameter/dto/SymbolDto.java

@@ -14,4 +14,7 @@

    @ApiModelProperty(value = "币种", example = "BTC/USDT")
    private String symbol;

    @ApiModelProperty(hidden = true)
    private Integer type;
}