LR分析法是给出一种能根据当前分析栈中的符号串（通常以状态表示）和向右顺序查看输入串的K个（K≥0)）符号就可唯一地确定分析器的动作是移进还是归约和用哪个产生式归约，因而也就能唯一地确定句柄，所以LR分析过程是一种规范归约过程-LR analysis method is given a can according to the analysis of the string (usually in state said to the right order) and check of K input (K zero) will be the only symbol to determine the action of the parser is moving into or be about and what to produce type, thus can about the only sure handle, so LR analysis process is a standard to about process