在用C#学习的时候，师父让我先试着写一个计算器，就像任何电脑都自带的那种，想起来是觉得小case，但是实际上操作起来还是发现了不少问题的。下面的代码就是目前实现的情况，相关变量的意义也都有说明，在次就不再赘述。目前的想法是解决剩下的几个问题，后期再考虑一下优化的问题。
祭出源码：
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Data;
5 using System.Drawing;
6 using System.Linq;
7 using System.Text;
8 using System.Threading.Tasks;
9 using System.Windows.Forms;
10
11 namespace 计算器
12 {
13 public partial class Form1 : Form
14 {
15 static double a = 0;//显示器变量
16 static double b = 0;//存储值变量
17 static int p = 0;//判断当前为整数还是小数
18 static int l = 1;//小数位
19 static int y = 1;//qingkongwei
20 static double q = 0;//小数位的单位值
21 static double x = 0;
22 char s=‘+‘;//运算符
23
24 class array_calc
25 {
26 public double shuru(int m, int n)
27 {
28 if (y == 0)
29 {
30 a = 0;
31 if (n != 0)
32 {
33 a = a * 10 + m;
34 int count = 0;
35 }
36 else
37 {
38 q = Math.Pow(0.1, l);
39 a = a + (q * m);
40 l++;
41 // MessageBox.Show("‘q是’" + q + "");
42 }
43 }
44 else
45 if (n != 0)
46 {
47 a = a * 10 + m;
48 int count = 0;
49 }
50 else
51 {
52 q = Math.Pow(0.1, l);
53 a = a + (q * m);
54 l++;
55 // MessageBox.Show("‘q是’" + q + "");
56 };
57 y = 1;
58 return a;
59
60 }
61 public char fuhao(char s)
62 {
63 b = a;
64 a = 0;
65 p = 0;
66 l = 1;
67 // MessageBox.Show("‘b是’" + b + "");
68 return s;
69 }
70
71 }
72 public Form1()
73 {
74 InitializeComponent();
75 }
76
77 private void button12_Click(object sender, EventArgs e)
78 {
79 a = 0;
80 textBox1.Text = "0";
81 b = 0;
82 p = 0;
83 l = 1;
84
85 }
86
87 private void toolTip1_Popup(object sender, PopupEventArgs e)
88 {
89
90 }
91
92 private void numericUpDown1_ValueChanged(object sender, EventArgs e)
93 {
94
95 }
96
97 private void textBox1_TextChanged(object sender, EventArgs e)
98 {
99
100
101 }
102
103 private void label1_Click(object sender, EventArgs e)
104 {
105
106 }
107
108 private void button1_Click(object sender, EventArgs e)
109 {
110 array_calc n1 = new array_calc();
111 if(p==0)
112 textBox1.Text="" + n1.shuru(1, 1) + " ";
113 else
114 textBox1.Text = "" + n1.shuru(1, 0) + " ";
115 }
116
117 private void button2_Click(object sender, EventArgs e)
118 {
119 array_calc n2 = new array_calc();
120 if (p == 0)
121 textBox1.Text = "" + n2.shuru(2, 1) + " ";
122 else
123 textBox1.Text = "" + n2.shuru(2, 0) + " ";
124 }
125
126 private void Form1_Load(object sender, EventArgs e)
127 {
128
129 }
130
131 private void button21_Click(object sender, EventArgs e)
132 {
133 array_calc jia = new array_calc();
134
135 s = jia.fuhao(‘+‘);
136 textBox2.Text = "+";
137 }
138
139 private void button17_Click(object sender, EventArgs e)
140 {
141 string result=string.Empty;
142 switch (s)
143 {
144 case ‘+‘:
145 a = b + a;
146 result = "" + a.ToString() + "";
147 s = ‘0‘;
148 break;
149 case ‘-‘:
150 a = b - a;
151 result = "" + a.ToString() + "";
152 s = ‘0‘;
153 break;
154 case ‘/‘:
155 if (a == 0)
156 result = "除数不能为0！";
157 else
158 {
159 a = b / a;
160 result = "" + a.ToString() + "";
161 }
162
163 s = ‘0‘;
164 break;
165 case ‘*‘:
166 a = b * a;
167 //MessageBox.Show("‘b是’" + b + "");
168 //MessageBox.Show("‘a是’" + a + "");
169 result = "" + a.ToString() + "";
170
171 s = ‘0‘;
172 break;
173 case ‘%‘:
174 a = b % a;
175 result = "" + a.ToString() + "";
176 break;
177 case ‘0‘:
178 result = "" + a.ToString() + "";
179 break;
180 default:
181 break;
182 }
183 this.textBox1.Text = result;
184
185 y = 0;
186 //l++;
187
188 //if (a == Math.Ceiling(a))
189 // p = 0;
190 //else
191 //{
192 // p = 1;
193 // x = a;
194 // while (x != Math.Ceiling(x))
195 // {
196 // x = a * 10;
197 // l++;
198 // }
199
200 //}
201
202
203 }
204
205 private void button13_Click(object sender, EventArgs e)
206 {
207 array_calc jan = new array_calc();
208
209 s = jan.fuhao(‘-‘);
210 textBox2.Text = "-";
211 }
212
213 private void button14_Click(object sender, EventArgs e)
214 {
215 array_calc ceg = new array_calc();
216 s = ceg.fuhao(‘*‘);
217 textBox2.Text = "*";
218 }
219
220 private void button15_Click(object sender, EventArgs e)
221 {
222 array_calc chu = new array_calc();
223 s = chu.fuhao(‘/‘);
224 textBox2.Text = "/";
225 }
226
227 private void button3_Click(object sender, EventArgs e)
228 {
229 array_calc n3 = new array_calc();
230 if (p == 0)
231 textBox1.Text = "" + n3.shuru(3, 1) + " ";
232 else
233 textBox1.Text = "" + n3.shuru(3, 0) + " ";
234 }
235
236 private void button4_Click(object sender, EventArgs e)
237 {
238 array_calc n4 = new array_calc();
239 if (p == 0)
240 textBox1.Text = "" + n4.shuru(4, 1) + " ";
241 else
242 textBox1.Text = "" + n4.shuru(4, 0) + " ";
243 }
244
245 private void button5_Click(object sender, EventArgs e)
246 {
247 array_calc n5 = new array_calc();
248 if (p == 0)
249 textBox1.Text = "" + n5.shuru(5, 1) + " ";
250 else
251 textBox1.Text = "" + n5.shuru(5, 0) + " ";
252 }
253
254 private void button6_Click(object sender, EventArgs e)
255 {
256 array_calc n6 = new array_calc();
257 if (p == 0)
258 textBox1.Text = "" + n6.shuru(6, 1) + " ";
259 else
260 textBox1.Text = "" + n6.shuru(6, 0) + " ";
261 }
262
263 private void button7_Click(object sender, EventArgs e)
264 {
265 array_calc n7 = new array_calc();
266 if (p == 0)
267 textBox1.Text = "" + n7.shuru(7, 1) + " ";
268 else
269 textBox1.Text = "" + n7.shuru(7, 0) + " ";
270 }
271
272 private void button8_Click(object sender, EventArgs e)
273 {
274 array_calc n8 = new array_calc();
275 if (p == 0)
276 textBox1.Text = "" + n8.shuru(8, 1) + " ";
277 else
278 textBox1.Text = "" + n8.shuru(8, 0) + " ";
279 }
280
281 private void button9_Click(object sender, EventArgs e)
282 {
283 array_calc n9 = new array_calc();
284 if (p == 0)
285 textBox1.Text = "" + n9.shuru(9, 1) + " ";
286 else
287 textBox1.Text = "" + n9.shuru(9, 0) + " ";
288 }
289
290 private void button23_Click(object sender, EventArgs e)
291 {
292 array_calc n0 = new array_calc();
293 if (p == 0)
294 textBox1.Text = "" + n0.shuru(0, 1) + " ";
295 else
296 textBox1.Text = "" + n0.shuru(0, 0) + " ";
297 }
298
299 private void button11_Click(object sender, EventArgs e)
300 {
301 a = 0;
302 b = 0;
303 p = 0;
304 l = 1;
305 textBox1.Text = "0";
306 textBox2.Text = " ";
307 }
308
309 private void textBox2_TextChanged(object sender, EventArgs e)
310 {
311
312 }
313
314 private void button16_Click(object sender, EventArgs e)
315 {
316 a = 0 - a;
317 textBox1.Text =""+a+"";
318 }
319
320 private void button18_Click(object sender, EventArgs e)
321 {
322 array_calc qyu = new array_calc();
323 s = qyu.fuhao(‘%‘);
324 textBox2.Text = "%";
325 y = 0;
326 }
327
328 private void button19_Click(object sender, EventArgs e)
329 {
330 a = Math.Sqrt(a);
331 textBox1.Text = "" + a + "";
332 textBox2.Text = "√";
333 y = 0;
334 }
335
336 private void button22_Click(object sender, EventArgs e)
337 {
338 if (a == 0)
339 textBox1.Text = "分母不能为0！";
340 else
341 {
342 a = 1 / a;
343 textBox1.Text = "" + a + "";
344 textBox2.Text = "1/X";
345 }
346 y = 0;
347
348 }
349
350 private void button20_Click(object sender, EventArgs e)
351 {
352 array_calc nn = new array_calc();
353 p = 1;
354 // textBox1.Text = "" + nn.shuru(1, 0) + " ";
355 }
356 }
357 }
接下来想要解决的问题是：
符号重新输入的问题：例如：1*+1=
C键、栅格键的问题
感觉自己的代码并没有怎么用到类和方法，似乎还是函数的思维。这个思想观点的转变比代码本身还要重要。
时间： 2024-10-29 19:08:02