我刚刚接触C#很多内容不是很了解,今天老师布置了几到题目.请教高手帮忙解决!~感激 感谢!~小弟以后一定回加倍努力!~谢谢!
1 輸入一數值成績，100-90 = A;89-80=B;79-70=C;69-60=D;其餘為E
2 請輸入一數值字串(如：”67345Abc”)進行由大至小排序。
3 輸入一字串，將字串加7後，輸出結果。

可以用冒泡排序法
using System;

namespace maopao
{
/// <summary>
/// Class2 的摘要说明。
/// </summary>
public class Class2
{
public void Sotr(int[] list)
{
int i,j,temp;
bool done;

for(j=0;j<list.Length;j++)
{
done=false;
for(i=list.Length-2;i>=j;i--)
{
if(list[i]>list[i+1])
{
temp=list[i];
list[i]=list[i+1];
list[i+1]=temp;
done=true;

}

}

if(!done)
{
break;
}
}
}
}
}

其实c#的语法和c，c++有相似的地方。
我看你还是根据所学的编程知识，自己去练习一下，然后贴上代码来大家教你怎么改 ， 这比单纯给你一串代码要好。
不要怕写得烂，谁生下来就会写程序呢？是吧？

版 主 说的有理
我在这里学了半个月了C#了
都是自学的
唉 好累啊感觉
什么也不是好懂
不知何时才能看懂代码

这位同学，坚持就是胜利啊！！！！

这位同学，偶和你一样也是新手，感觉也很晕。恩。。。顶住啊

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
this.Height = 265;
label1.Text = DateTime.Now.Year.ToString();
label3.Text = DateTime.Now.Month.ToString();
label5.Text = DateTime.Now.Day.ToString();
switch (DateTime.Now.DayOfWeek.ToString())
{
case "Monday": label7.Text = "星期一";
case "Tuesday": label7.Text = "星期二";
case "wednesday": label7.Text = "星期三";
case "Thursday": label7.Text = "星期四";
case "Friday": label7.Text = "星期五";
case "Saturday": label7.Text = "星期六";
case "Sunday": label7.Text = "星期日";
break;
}
for (int i = -40; i < 45; i++)
{
string tem = i.ToString() + "度";
comboBox1.Items.Add(tem);
comboBox2.Items.Add(tem);
}
comboBox1.Text = "15度";
comboBox2.Text = "25度";
radioButton1.Checked = true;
label9.Text = "晴";
label11.Text = comboBox1.Text;
label13.Text = comboBox2.Text;
}

private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
label9.Text = "晴";
}

private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
label9.Text = "阴";
}

private void radioButton3_CheckedChanged(object sender, EventArgs e)
{
label9.Text = "雨";
}

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
label11.Text = comboBox1.Text;
}

private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
label13.Text = comboBox2.Text;
}

private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkBox1.Checked == true)
this.Height = 425;
else
this.Height = 265;
}

private void timer1_Tick(object sender, EventArgs e)
{
label1.Text = DateTime.Now.Year.ToString();
label3.Text =DateTime.Now.Month.ToString();
label5.Text = DateTime.Now.Day.ToString();
switch (DateTime.Now.DayOfWeek.ToString())
{
case "Monday": label7.Text = "星期一";
break;
case "Tuesday": label7.Text = "星期二";
break;
case "Wednesday": label7.Text = "星期三";
break;
case "Thursday": label7.Text = "星期四";
break;
case "Friday": label7.Text = "星期五";
break;
case "Saturday": label7.Text = "星期六";
break;
case "Sunday": label7.Text = "星期日";
break;
}
}
}
}
各位高手帮忙看下，这代码出了什么问题，老是不成功的，谢谢

不用麻烦了，我发现问题了，是那个datetime,我给搞错了，