四则运算小程序。生成可视化友好的界面，跟普通计算器很像，功能也还比较全。可以运行加减乘除，求余、清零、退出。...

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四则运算小程序。生成可视化友好的界面，跟普通计算器很像，功能也还比较全。可以运行加减乘除，求余、清零、退出。-four small Operational procedures. Generation Visual friendly interface, like with ordinary calculators, are also more functional whole. The arithmetic can run, I seek, reset the withdrawal.