Introduction - If you have any usage issues, please Google them yourself
This is my data structure of the curriculum design, 1. Initialize two empty stacks, one stack operator, one is operand stack. 2. If the characters are operands, and place it into the operand stack pressure. If the character is an operator, the operator and operator of Top-comparison of priority after the corresponding operation, priority technical Ozawa入栈pressure than would be Top-Operators of the stack, and computing the number of Top-of carried out a stack of two the number of computing. Equivalent, then pop-up operator.