Merge branch 'activity' of http://120.27.238.55:7000/r/exchange into activity

xiaoyong931011

2021-03-30 0854f968f2b696ea4c39ef175b083c0a55116418

 src/main/java/com/xcong/excoin/utils/CoinTypeConvert.java

@@ -47,4 +47,12 @@
                return null;
        }
    }

    public static String convertContractTypeToCoin(String symbol) {
        if (symbol.indexOf("/") > 0) {
            return symbol.substring(0, symbol.indexOf("/"));
        } else {
            return null;
        }
    }
}