我的任务:合并并分割两个字符串。
例如:
text =“abcd”
key =“12”
step = 2
结果 =“1ab2cd”
Пример:
1)合并字符串。
输入变量:
text =“abcd”
key =“12”
步骤= 2
输出变量:
result =“1ab2cd”
2)现在我需要解密字符串的结果到源数据,其中key。长度和步长变量是已知的。
输入变量:
result =“1ab2cd”
key.Length = 2
step = 2
输出变量:
text =“abcd”
key =“12”
算法(1)已经实现:
int step, word;
string text, key, result = string.Empty;
Console.Write("Enter Text : ");
text = Console.ReadLine();
Console.Write("Enter Key : ");
key = Console.ReadLine();
Console.Write("Enter Step : ");
step = int.Parse(Console.ReadLine());
// MIX ARRAY
word = 0;
if (step <= text.Length)
{
for (int i = 0; i < key.Length; i++)
{
result += key.Substring(i, 1);
for (int k = 0; k < step; k++)
{
try
{
result += text.Substring(word, 1);
word++;
}
catch
{
break;
}
}
}
if (word < text.Length)
{
result += text.Substring(word, (text.Length - word));
}
}
Console.WriteLine("Result Text : " + result);
// DECIPHER ARRAY
Console.WriteLine("text: " + text);
Console.WriteLine("key: " + key);
Console.ReadKey();
如何实现算法(2)?
答案 0 :(得分:1)
text = "abcd" key = "12" step = 2 result = "1ab2cd"
首先 - &gt;考虑变量。你需要多少和哪种变量。
int step,word;
string text,key,result;
第二 - &gt;用所需值填充变量
Console.Write("Enter Text : ")
text = Console.ReadLine();
Console.Write("Enter Key : ")
key = Console.ReadLine();
Console.Write("Enter Step : ")
step = int.Parse(Console.ReadLine());
第三 - &gt;创建一个用于解决此问题的算法
Forth - &gt;考虑什么是异常以及如何解决它们
for(int i=0;i<key.Length;i++)
{
result+=key.Substring(i,1);
for(int k=0; k<step; k++)
{
try
{
result+=text.Substring(word,1);
word++;
}
catch
{
/* This blok will break
when the text variable's last part's character count lest then step. */
break;
}
}
}
if(word < text.Length)
{
// if there is any text after all. Calculate how many letter left then write them
result += text.Substring(word,(text.Length-word))
}
Console.Write("Result Text : "+result);
Console.ReadKey();
我希望这可以对你有所帮助
答案 1 :(得分:1)
如果你愿意的话,我会把它写成另一个代码块你可以合并2 algorthym。 再考虑我的4个步骤。
1-找到你需要的变量?
string key = "", text = "", result;
int step = 0, keyLength, textLength, word = 0;
2-取得所有价值
Console.Write("Result Text : ");
result = Console.ReadLine();
Console.Write("Key Length: ");
keyLength = int.Parse(Console.ReadLine());
textLength = result.Length - keyLength;
Console.Write("Step: ");
step = int.Parse(Console.ReadLine());
3-想想algorthym
4-想想可能会出现异常
for (int i = 0; i < result.Length; i = word)
{
if (keyLength > 0)
{
key += result.Substring(word, 1);
word++;
keyLength--;
}
if (textLength > 0)
{
for (int k = 0; k < step; k++)
{
try
{
text += result.Substring(word, 1);
word++;
textLength--;
}
catch
{
break;
}
}
}
}
Console.WriteLine("Text : " + text);
Console.Write("Key : " + key);
Console.ReadKey();
答案 2 :(得分:0)
对不起,我无法测试这个。我希望它有所帮助:
static string Combine(string text, string key, int step)
{
var result = "";
int stepCount = 0;
for (int i = 0; i < text.Length + key.Length; i++)
{
if (i % step == 0)
{
result += key[i / step];
stepCount++;
}
else
{
result += text[i - stepCount];
}
}
return result;
}