java堆与栈 - 一些java中常见的基础问题的总结-java heap and the stack- some java basic common issues summary

用c++语言借用栈将中缀表达式转化为后缀表达式并且计算出后缀表达式的值，支持浮点数运算-Borrowing the language used c++ stack will infix expressions into postfix expression and calculate the value of the postfix expression of support for floating-point operations