请问${actionBean.detail[0].name}中的detail[0]是做什么的,为什么是0?

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请问${actionBean.detail[0].name}中的detail[0]是做什么的,为什么是0?请问${actionBean.detail[0].name}中的detail[0]是做什么的,

请问${actionBean.detail[0].name}中的detail[0]是做什么的,为什么是0?
请问${actionBean.detail[0].name}中的detail[0]是做什么的,为什么是0?

请问${actionBean.detail[0].name}中的detail[0]是做什么的,为什么是0?
detail可能是集合类型List或者数组吧,因为下标从0开始,所以0代表取第一个

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