C# - 變數(variable)

學習重點:

• 宣告變數(variable)
• 按鈕事件(event)
• 彈跳視窗(MessageBox)

主程式:   
private void button1_Click(object sender, EventArgs e)

{

int n = 10;

float f = 1.5f;

double d = 3.14;

bool b = true;

string str = "hello"+ n; // n 自動轉型為字串

MessageBox.Show("n = " + n+", f = " + f + ", d = " + d + ", b = " + b + ", str = " + str);

}

執行結果: