我无法弄清楚我得到的错误
“{”输入字符串的格式不正确。“}”
当我输入例如5 + 5进入我的Sum文本框并点击等于然后应该在我的答案文本框中显示我的答案时,然而当我输入5 + 5时我得到上面的错误显示我似乎无法解决它。
这是我的添加按钮代码
private void Addition_Click(object sender, EventArgs e)
{
dbl_FirstNumber = Convert.ToDouble(Sum.Text); //Operation Works, need to get rid of the 0
Sum.AppendText(" + ");
这是我的等号按钮代码
private void equals_Click(object sender, EventArgs e)
{
string[] hold = Sum.Text.Split(' ');//
switch (hold[1])//holds the first number
{
case "+":
Result.Text = Convert.ToString(Convert.ToDouble(Sum.Text) + hold[0].ToString() + hold[2].ToString());
break;
我的第二个问题
好的,所以当我尝试输入3 + 3 + 3时,我得到了错误 “{”输入字符串的格式不正确。“}”
这是我的附加代码
private void Addition_Click(object sender, EventArgs e)
{
dbl_FirstNumber = Convert.ToDouble(Sum.Text);
Sum.AppendText(" + ");
}
错误的屏幕截图 - https://gyazo.com/9689d4f5055d7cc9211e1c2822b1d6f3
答案 0 :(得分:0)
有错误......
private void equals_Click(object sender, EventArgs e)
{
string[] hold = Sum.Text.Split(' ');
switch (hold[1]) // holds the DELIMTER
{
case "+":
Result.Text = Convert.ToString(Convert.ToDouble(Sum.Text) + hold[0].ToString() + hold[2].ToString());
// THATS WRONG! ^ this would take "5 + 5" and you CANNOT convert this.
// here you would Need:
Result.Text = (Convert.ToDouble(hold[0]) + Convert.ToDouble(hold[2])).ToString();
break;