public static FormatDouble randomDouble(final double min, final double max, final String... format) {
        
        Double result = (Math.random() * (max - min)) + min;
        if (Objects.nonNull(format) && format.length != 0) {
            return new FormatDouble(result, format[0]);
        }
        return new FormatDouble(result);
    }
Randomly generate Double in the specified range.

@param min    min
@param max    max
@param format format
@return formatDouble
shenyu-plugin/shenyu-plugin-mock/src/main/java/org/apache/shenyu/plugin/mock/util/MockUtil.java