根据相应的LL(1)分析表对所给算数表达式进行LL(1)分析，给出过程显示和结果显示。能够对错误表达式报错并解释原因。-According to the LL (1) Analysis of the expression to the counts for LL (1) analysis, given the process of display and shows. Capable of error and the error expression to explain why.