It's my first time doing this in a program and I was wondering if there is a way to set the limit to zero. The max value is 100 and when the user used it all up, the min value should be 0 and shouldn't be less than 0. This is the code that I came up with. Thanks for any input, help and ideas.It's my first time doing this in a program and
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如何将值限制设置为零？
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