任务 编写程序计算波兰表达式的值。 输入

输入第一行是一个整数，表示输入文件中共有几个波兰式，之后每一行是一个波兰表达式。 -Enter the first line is an integer, the input file there are several Polish, followed by a Polish expression for each line.



Each expression contains numbers and binary operators+,-,*, operands and results are in [-101 000, 101 000] between.



Can assume that each row of data (operation symbols and numbers) a total of not more than 100.

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按住 Shift 键的同时拖动短语即可重新排序。

为翻译结果评分