使用 Unique 规则

var style = new GC.Spread.Sheets.Style();
style.backColor = "green";
var ranges = [new GC.Spread.Sheets.Range(0, 0, 10, 1)];
activeSheet.conditionalFormats.addUniqueRule(style, ranges);
activeSheet.setValue(0, 0, 50);
activeSheet.setValue(1, 0, 50);
activeSheet.setValue(2, 0, 11);
activeSheet.setValue(3, 0, 5);
// OR
var style = new GC.Spread.Sheets.Style();
style.backColor = "green";
var rule = new GC.Spread.Sheets.ConditionalFormatting.NormalConditionRule();
rule.ruleType(GC.Spread.Sheets.ConditionalFormatting.RuleType.UniqueRule);
rule.ranges([new GC.Spread.Sheets.Range(0, 0, 10, 1)]);
rule.style(style);
activeSheet.conditionalFormats.addRule(rule);
activeSheet.setValue(0, 0, 50);
activeSheet.setValue(1, 0, 50);
activeSheet.setValue(2, 0, 11);
activeSheet.setValue(3, 0, 5);