广义上infix是给user看的,prefix和postfix很大程度上是给编译器看的。具体地,对于单操作符运算,其实用的是prefix(比如取非),当然常见的prefix/postfix就是++、--,但是python中没有这个操作符。 有用 回复 查看全部 1 个回答 推荐问题 字节的 trae AI IDE 不支持类似 vscode 的 ssh remote 远程开发怎么办? 尝...
It's actually quite common to have a function call pass one parameter, where the parameter is calculated using infix notation. Thus, there's a rule to simplify this common case (the prefix {} rule). So factorial{n - 1} maps to factorial({n - 1}) which maps to (factorial (- n 1...
The idea is to use thestack data structureto convert an infix expression to a postfix expression. The stack is used to reverse the order of operators in postfix expression. The stack is also used to hold operators since an operator can’t be added to a postfix expression until both of its...
Se o token atual for um operando, anexe-o no final da expressão postfix. Se o token atual for um operador, coloque-o no topo da Stack. Antes de fazer isso, primeiro pule da Stack até que tenhamos um operador de menor precedência no topo, ou a Stack fique vazia. Acrescente ca...