我有兩個文本框，一個按鈕和一個文本框，結果將是
#pragma endregion
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
double x = 0;
double y = 0;
double z = 0;
x = Convert.ToDouble(textBox1->Text);
y = Convert.ToDouble(textBox2->Text);
z = x y;
textBox3->Text = Convert.ToString(z);
}
“轉換”寫入錯誤號 E0254
uj5u.com熱心網友回復：
ifToDouble和ToString是靜態成員函式 then 而不是
x = Convert.ToDouble(textBox1->Text);
y = Convert.ToDouble(textBox2->Text);
textBox3->Text = Convert.ToString(z);
你需要寫
x = Convert::ToDouble(textBox1->Text);
y = Convert::ToDouble(textBox2->Text);
textBox3->Text = Convert::ToString(z);
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