VB中求正弦,txtResult.Text = Sin(Val(txtInput.Text * 3.14159 / 180))txtResult.Text是输出值txtInput.Text是输入值为什么得出的结果总是错误的?
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![VB中求正弦,txtResult.Text = Sin(Val(txtInput.Text * 3.14159 / 180))txtResult.Text是输出值txtInput.Text是输入值为什么得出的结果总是错误的?](/uploads/image/z/5187816-0-6.jpg?t=VB%E4%B8%AD%E6%B1%82%E6%AD%A3%E5%BC%A6%2CtxtResult.Text+%3D+Sin%28Val%28txtInput.Text+%2A+3.14159+%2F+180%29%29txtResult.Text%E6%98%AF%E8%BE%93%E5%87%BA%E5%80%BCtxtInput.Text%E6%98%AF%E8%BE%93%E5%85%A5%E5%80%BC%E4%B8%BA%E4%BB%80%E4%B9%88%E5%BE%97%E5%87%BA%E7%9A%84%E7%BB%93%E6%9E%9C%E6%80%BB%E6%98%AF%E9%94%99%E8%AF%AF%E7%9A%84%3F)
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