SAS字符比較

Question

我是SAS的新手，有問題。 我有一個像這樣的數據集： Dataset_idchemo ， if Chemo = NonTreated else 1 NonTreated ，我想用0創建一個新的虛擬變量， if Chemo = NonTreated else 1 idk為什么我不能，結果是只有零的列和一堆警告，例如" Invalid numeric data, 'Treated' , at line 74 column 13."

我的代碼是：

data new; 
    set readm;
chemio = 0;
if chemo =: 'Treated' then chemio = 1; 
run; 

謝謝！

PS：這是我的數據集，我不知道這是否是在此處添加它的正確方法，請告訴我什么是最好的方法。

Oss共有四列，它是觀測值的編號， id ， event （0或1）和chemo （“已處理”，“非已處理”）

Oss id  event   chemo
1   1   1   Treated
2   1   1   Treated
3   1   0   Treated
4   2   1   NonTreated
5   2   0   NonTreated
6   3   1   NonTreated
7   3   0   NonTreated
8   4   1   Treated
9   4   1   Treated
10  4   1   Treated
11  4   1   Treated
12  4   0   Treated
13  5   1   NonTreated
14  5   0   NonTreated
15  6   1   Treated
16  6   1   Treated
17  6   1   Treated
18  6   0   Treated
19  7   1   Treated
20  7   1   Treated
21  7   1   Treated
22  7   0   Treated
23  8   0   NonTreated
24  9   1   NonTreated
25  9   0   NonTreated
26  10  0   Treated
27  11  1   Treated
28  11  1   Treated
29  11  0   Treated
30  12  0   Treated
31  13  1   NonTreated
32  13  0   NonTreated
33  14  0   Treated
34  15  1   NonTreated
35  15  1   NonTreated
36  15  0   NonTreated
37  16  1   NonTreated
38  16  0   NonTreated
39  17  0   NonTreated
40  18  0   Treated
41  19  0   Treated
42  20  1   Treated
43  20  0   Treated
44  21  1   Treated
45  21  0   Treated
46  22  0   Treated
47  23  1   Treated
48  23  0   Treated
49  24  1   Treated
50  24  0   Treated
51  25  0   Treated
52  26  0   Treated
53  27  0   Treated
54  28  0   NonTreated
55  29  1   Treated
56  29  0   Treated
57  30  0   Treated
58  31  1   Treated
59  31  0   Treated
60  32  1   NonTreated
61  32  1   NonTreated
62  32  0   NonTreated
63  33  1   Treated
64  33  1   Treated
65  33  1   Treated
66  33  0   Treated
67  34  0   Treated
68  35  1   Treated
69  35  0   Treated
70  36  0   Treated
71  37  1   NonTreated
72  37  1   NonTreated
73  37  0   NonTreated
74  38  0   NonTreated
75  39  0   Treated
76  40  1   Treated
77  40  1   Treated
78  40  1   Treated
79  40  1   Treated
80  40  1   Treated
81  40  1   Treated
82  40  0   Treated
83  41  1   Treated
84  41  0   Treated
85  42  1   Treated
86  42  1   Treated
87  42  0   Treated
88  43  1   Treated
89  43  1   Treated
90  43  0   Treated
91  44  1   NonTreated
92  44  0   NonTreated
93  45  0   NonTreated
94  46  0   Treated
95  47  0   NonTreated
96  48  0   NonTreated
97  49  1   NonTreated
98  49  0   NonTreated
99  50  1   NonTreated
100 50  0   NonTreated
101 51  1   NonTreated
102 51  1   NonTreated
103 51  0   NonTreated
104 52  1   NonTreated
105 52  1   NonTreated
106 52  1   NonTreated
107 52  1   NonTreated
108 52  0   NonTreated
109 53  1   Treated
110 53  1   Treated
111 53  0   Treated
112 54  1   NonTreated
113 54  0   NonTreated
114 55  0   Treated
115 56  0   Treated
116 57  0   NonTreated
117 58  0   Treated
118 59  0   Treated
119 60  1   NonTreated
120 60  0   NonTreated
121 61  0   Treated
122 62  0   Treated
123 63  0   Treated
124 64  1   Treated
125 64  0   Treated
126 65  1   Treated
127 65  0   Treated
128 66  0   Treated
129 67  0   NonTreated
130 68  1   NonTreated
131 68  0   NonTreated
132 69  0   Treated
133 70  0   Treated
134 71  1   Treated
135 71  1   Treated
136 71  0   Treated
137 72  0   Treated
138 73  0   Treated
139 74  0   NonTreated
140 75  0   Treated
141 76  1   NonTreated
142 76  1   NonTreated
143 76  0   NonTreated
144 77  0   NonTreated
145 78  1   NonTreated
146 78  1   NonTreated
147 78  1   NonTreated
148 78  1   NonTreated
149 78  0   NonTreated
150 79  1   Treated
151 79  0   Treated
152 80  0   NonTreated
153 81  0   NonTreated
154 82  1   NonTreated
155 82  0   NonTreated
156 83  1   Treated
157 83  0   Treated
158 84  1   NonTreated
159 84  0   NonTreated
160 85  0   Treated
161 86  1   Treated
162 86  1   Treated
163 86  0   Treated
164 87  1   Treated
165 87  0   Treated
166 88  1   NonTreated
167 88  0   NonTreated
168 89  0   Treated
169 90  0   Treated
170 91  1   NonTreated
171 91  1   NonTreated
172 91  0   NonTreated
173 92  0   NonTreated
174 93  1   NonTreated
175 93  1   NonTreated
176 93  1   NonTreated
177 93  0   NonTreated
178 94  1   Treated
179 94  0   Treated
180 95  0   Treated
181 96  0   Treated
182 97  1   Treated
183 97  1   Treated
184 97  1   Treated
185 97  0   Treated
186 98  1   Treated
187 98  1   Treated
188 98  0   Treated
189 99  0   NonTreated
190 100 1   NonTreated
191 100 0   NonTreated
192 101 0   Treated
193 102 1   Treated
194 102 1   Treated
195 102 0   Treated
196 103 1   NonTreated
197 103 0   NonTreated
198 104 0   NonTreated
199 105 0   NonTreated
200 106 0   Treated
201 107 0   Treated
202 108 1   Treated
203 108 0   Treated
204 109 1   NonTreated
205 109 0   NonTreated
206 110 0   Treated
207 111 0   Treated
208 112 0   Treated
209 113 0   NonTreated
210 114 1   NonTreated
211 114 1   NonTreated
212 114 1   NonTreated
213 114 1   NonTreated
214 114 1   NonTreated
215 114 1   NonTreated
216 114 1   NonTreated
217 114 1   NonTreated
218 114 1   NonTreated
219 114 0   NonTreated
220 115 1   NonTreated
221 115 1   NonTreated
222 115 0   NonTreated
223 116 0   NonTreated
224 117 1   NonTreated
225 117 0   NonTreated
226 118 1   Treated
227 118 0   Treated
228 119 1   NonTreated
229 119 0   NonTreated
230 120 0   NonTreated
231 121 0   NonTreated
232 122 1   NonTreated
233 122 1   NonTreated
234 122 1   NonTreated
235 122 1   NonTreated
236 122 0   NonTreated
237 123 0   Treated
238 124 0   NonTreated
239 125 1   Treated
240 125 0   Treated
241 126 1   Treated
242 126 0   Treated
243 127 0   NonTreated
244 128 1   NonTreated
245 128 0   NonTreated
246 129 1   NonTreated
247 129 1   NonTreated
248 129 0   NonTreated
249 130 0   Treated
250 131 1   NonTreated
251 131 1   NonTreated
252 131 1   NonTreated
253 131 1   NonTreated
254 131 0   NonTreated
255 132 1   NonTreated
256 132 0   NonTreated
257 133 1   NonTreated
258 133 1   NonTreated
259 133 1   NonTreated
260 133 0   NonTreated
261 134 1   NonTreated
262 134 0   NonTreated
263 135 1   NonTreated
264 135 1   NonTreated
265 135 1   NonTreated
266 135 1   NonTreated
267 135 0   NonTreated
268 136 1   NonTreated
269 136 1   NonTreated
270 136 1   NonTreated
271 136 1   NonTreated
272 136 0   NonTreated
273 137 0   NonTreated
274 138 1   Treated
275 138 1   Treated
276 138 1   Treated
277 138 0   Treated
278 139 0   NonTreated
279 140 0   Treated
280 141 1   Treated
281 141 1   Treated
282 141 1   Treated
283 141 0   Treated
284 142 1   Treated
285 142 0   Treated
286 143 1   NonTreated
287 143 0   NonTreated
288 144 1   Treated
289 144 0   Treated
290 145 0   Treated
291 146 1   NonTreated
292 146 0   NonTreated
293 147 1   Treated
294 147 1   Treated
295 147 1   Treated
296 147 1   Treated
297 147 0   Treated
298 148 1   Treated
299 148 0   Treated
300 149 1   Treated
301 149 1   Treated
302 149 0   Treated
303 150 1   Treated
304 150 0   Treated
305 151 0   Treated
306 152 0   Treated
307 153 1   NonTreated
308 153 1   NonTreated
309 153 0   NonTreated
310 154 1   Treated
311 154 1   Treated
312 154 0   Treated
313 155 0   Treated
314 156 1   Treated
315 156 1   Treated
316 156 0   Treated
317 157 0   Treated
318 158 0   Treated
319 159 0   Treated
320 160 1   Treated
321 160 1   Treated
322 160 0   Treated
323 161 0   NonTreated
324 162 0   Treated
325 163 0   NonTreated
326 164 0   Treated
327 165 0   Treated
328 166 0   NonTreated
329 167 0   Treated
330 168 1   NonTreated
331 168 0   NonTreated
332 169 0   NonTreated
333 170 1   NonTreated
334 170 1   NonTreated
335 170 0   NonTreated
336 171 1   NonTreated
337 171 1   NonTreated
338 171 0   NonTreated
339 172 0   Treated
340 173 0   Treated
341 174 1   Treated
342 174 1   Treated
343 174 1   Treated
344 174 1   Treated
345 174 0   Treated
346 175 0   Treated
347 176 1   Treated
348 176 0   Treated
349 177 1   NonTreated
350 177 1   NonTreated
351 177 0   NonTreated
352 178 0   NonTreated
353 179 0   Treated
354 180 1   Treated
355 180 0   Treated
356 181 0   Treated
357 182 0   NonTreated
358 183 1   Treated
359 183 1   Treated
360 183 1   Treated
361 183 1   Treated
362 183 1   Treated
363 183 0   Treated
364 184 1   NonTreated
365 184 0   NonTreated
366 185 1   NonTreated
367 185 0   NonTreated
368 186 1   NonTreated
369 186 1   NonTreated
370 186 1   NonTreated
371 186 0   NonTreated
372 187 1   NonTreated
373 187 1   NonTreated
374 187 0   NonTreated
375 188 0   Treated
376 189 0   Treated
377 190 1   Treated
378 190 1   Treated
379 190 0   Treated
380 191 1   Treated
381 191 1   Treated
382 191 0   Treated
383 192 1   NonTreated
384 192 1   NonTreated
385 192 1   NonTreated
386 192 0   NonTreated
387 193 0   NonTreated
388 194 1   Treated
389 194 0   Treated
390 195 0   Treated
391 196 0   Treated
392 197 0   NonTreated
393 198 1   Treated
394 198 0   Treated
395 199 1   NonTreated
396 199 0   NonTreated
397 200 0   Treated
398 201 1   Treated
399 201 1   Treated
400 201 1   Treated
401 201 1   Treated
402 201 1   Treated
403 201 1   Treated
404 201 0   Treated
405 202 1   NonTreated
406 202 1   NonTreated
407 202 0   NonTreated
408 203 1   Treated
409 203 0   Treated
410 204 0   NonTreated
411 205 0   Treated
412 206 1   Treated
413 206 0   Treated
414 207 0   Treated
415 208 1   Treated
416 208 0   Treated
417 209 1   Treated
418 209 1   Treated
419 209 1   Treated
420 209 1   Treated
421 209 1   Treated
422 209 1   Treated
423 209 0   Treated
424 210 0   Treated
425 211 0   NonTreated
426 212 1   NonTreated
427 212 1   NonTreated
428 212 1   NonTreated
429 212 0   NonTreated
430 213 0   Treated
431 214 1   Treated
432 214 1   Treated
433 214 1   Treated
434 214 1   Treated
435 214 0   Treated
436 215 0   Treated
437 216 0   Treated
438 217 0   Treated
439 218 0   Treated
440 219 1   NonTreated
441 219 1   NonTreated
442 219 1   NonTreated
443 219 0   NonTreated
444 220 1   Treated
445 220 1   Treated
446 220 0   Treated
447 221 1   Treated
448 221 1   Treated
449 221 0   Treated
450 222 0   Treated
451 223 0   Treated
452 224 1   NonTreated
453 224 0   NonTreated
454 225 0   Treated
455 226 1   NonTreated
456 226 0   NonTreated
457 227 0   NonTreated
458 228 1   Treated
459 228 1   Treated
460 228 1   Treated
461 228 1   Treated
462 228 1   Treated
463 228 0   Treated
464 229 1   Treated
465 229 0   Treated
466 230 0   Treated
467 231 0   Treated
468 232 1   NonTreated
469 232 1   NonTreated
470 232 1   NonTreated
471 232 1   NonTreated
472 232 0   NonTreated
473 233 0   NonTreated
474 234 0   Treated
475 235 1   NonTreated
476 235 1   NonTreated
477 235 0   NonTreated
478 236 0   Treated
479 237 1   NonTreated
480 237 0   NonTreated
481 238 0   Treated
482 239 0   Treated
483 240 1   NonTreated
484 240 1   NonTreated
485 240 0   NonTreated
486 241 1   NonTreated
487 241 0   NonTreated
488 242 1   NonTreated
489 242 1   NonTreated
490 242 0   NonTreated
491 243 1   NonTreated
492 243 1   NonTreated
493 243 1   NonTreated
494 243 0   NonTreated
495 244 0   Treated
496 245 0   Treated
497 246 1   Treated
498 246 0   Treated
499 247 1   Treated
500 247 1   Treated
501 247 0   Treated
502 248 0   NonTreated
503 249 0   NonTreated
504 250 1   NonTreated
505 250 0   NonTreated
506 251 1   NonTreated
507 251 0   NonTreated
508 252 1   Treated
509 252 0   Treated
510 253 1   NonTreated
511 253 0   NonTreated
512 254 1   NonTreated
513 254 1   NonTreated
514 254 0   NonTreated
515 255 0   Treated
516 256 1   Treated
517 256 0   Treated
518 257 0   Treated
519 258 0   Treated
520 259 0   NonTreated
521 260 0   Treated
522 261 0   Treated
523 262 1   Treated
524 262 0   Treated
525 263 1   NonTreated
526 263 0   NonTreated
527 264 0   NonTreated
528 265 0   NonTreated
529 266 0   NonTreated
530 267 0   NonTreated
531 268 0   NonTreated
532 269 1   NonTreated
533 269 1   NonTreated
534 269 1   NonTreated
535 269 1   NonTreated
536 269 1   NonTreated
537 269 1   NonTreated
538 269 1   NonTreated
539 269 1   NonTreated
540 269 1   NonTreated
541 269 1   NonTreated
542 269 0   NonTreated
543 270 1   Treated
544 270 1   Treated
545 270 0   Treated
546 271 0   Treated
547 272 1   Treated
548 272 0   Treated
549 273 0   Treated
550 274 1   NonTreated
551 274 1   NonTreated
552 274 1   NonTreated
553 274 1   NonTreated
554 274 1   NonTreated
555 274 1   NonTreated
556 274 1   NonTreated
557 274 1   NonTreated
558 274 1   NonTreated
559 274 1   NonTreated
560 274 1   NonTreated
561 274 1   NonTreated
562 274 1   NonTreated
563 274 1   NonTreated
564 274 1   NonTreated
565 274 1   NonTreated
566 274 0   NonTreated
567 275 1   Treated
568 275 0   Treated
569 276 1   NonTreated
570 276 1   NonTreated
571 276 1   NonTreated
572 276 0   NonTreated
573 277 1   NonTreated
574 277 0   NonTreated
575 278 1   Treated
576 278 1   Treated
577 278 0   Treated
578 279 0   NonTreated
579 280 1   NonTreated
580 280 1   NonTreated
581 280 1   NonTreated
582 280 1   NonTreated
583 280 0   NonTreated
584 281 0   NonTreated
585 282 1   NonTreated
586 282 1   NonTreated
587 282 0   NonTreated
588 283 1   NonTreated
589 283 0   NonTreated
590 284 0   NonTreated
591 285 0   NonTreated
592 286 0   NonTreated
593 287 0   Treated
594 288 1   Treated
595 288 0   Treated
596 289 0   Treated
597 290 1   NonTreated
598 290 0   NonTreated
599 291 0   Treated
600 292 1   NonTreated
601 292 0   NonTreated
602 293 0   NonTreated
603 294 0   Treated
604 295 0   Treated
605 296 1   Treated
606 296 0   Treated
607 297 0   NonTreated
608 298 1   NonTreated
609 298 1   NonTreated
610 298 1   NonTreated
611 298 1   NonTreated
612 298 1   NonTreated
613 298 0   NonTreated
614 299 0   NonTreated
615 300 1   Treated
616 300 0   Treated
617 301 1   NonTreated
618 301 1   NonTreated
619 301 1   NonTreated
620 301 0   NonTreated
621 302 1   Treated
622 302 1   Treated
623 302 0   Treated
624 303 0   Treated
625 304 1   NonTreated
626 304 1   NonTreated
627 304 1   NonTreated
628 304 1   NonTreated
629 304 0   NonTreated
630 305 1   NonTreated
631 305 0   NonTreated
632 306 0   Treated
633 307 1   Treated
634 307 0   Treated
635 308 0   NonTreated
636 309 1   NonTreated
637 309 1   NonTreated
638 309 1   NonTreated
639 309 0   NonTreated
640 310 1   NonTreated
641 310 0   NonTreated
642 311 0   Treated
643 312 0   NonTreated
644 313 0   NonTreated
645 314 0   Treated
646 315 1   Treated
647 315 0   Treated
648 316 1   Treated
649 316 0   Treated
650 317 1   NonTreated
651 317 1   NonTreated
652 317 1   NonTreated
653 317 1   NonTreated
654 317 1   NonTreated
655 317 1   NonTreated
656 317 1   NonTreated
657 317 1   NonTreated
658 317 0   NonTreated
659 318 1   Treated
660 318 1   Treated
661 318 1   Treated
662 318 1   Treated
663 318 1   Treated
664 318 1   Treated
665 318 0   Treated
666 319 0   Treated
667 320 1   NonTreated
668 320 0   NonTreated
669 321 1   Treated
670 321 1   Treated
671 321 0   Treated
672 322 1   Treated
673 322 0   Treated
674 323 0   NonTreated
675 324 1   Treated
676 324 0   Treated
677 325 1   NonTreated
678 325 1   NonTreated
679 325 1   NonTreated
680 325 0   NonTreated
681 326 0   Treated
682 327 1   NonTreated
683 327 1   NonTreated
684 327 1   NonTreated
685 327 1   NonTreated
686 327 0   NonTreated
687 328 0   NonTreated
688 329 0   Treated
689 330 0   NonTreated
690 331 1   Treated
691 331 0   Treated
692 332 0   Treated
693 333 0   Treated
694 334 1   NonTreated
695 334 0   NonTreated
696 335 1   NonTreated
697 335 0   NonTreated
698 336 1   NonTreated
699 336 1   NonTreated
700 336 1   NonTreated
701 336 1   NonTreated
702 336 1   NonTreated
703 336 0   NonTreated
704 337 0   NonTreated
705 338 0   Treated
706 339 1   NonTreated
707 339 1   NonTreated
708 339 0   NonTreated
709 340 0   NonTreated
710 341 0   Treated
711 342 0   NonTreated
712 343 0   NonTreated
713 344 0   Treated
714 345 0   Treated
715 346 0   Treated
716 347 1   NonTreated
717 347 1   NonTreated
718 347 1   NonTreated
719 347 0   NonTreated
720 348 1   NonTreated
721 348 1   NonTreated
722 348 1   NonTreated
723 348 1   NonTreated
724 348 0   NonTreated
725 349 1   NonTreated
726 349 0   NonTreated
727 350 1   NonTreated
728 350 1   NonTreated
729 350 1   NonTreated
730 350 1   NonTreated
731 350 1   NonTreated
732 350 1   NonTreated
733 350 1   NonTreated
734 350 1   NonTreated
735 350 1   NonTreated
736 350 1   NonTreated
737 350 1   NonTreated
738 350 1   NonTreated
739 350 1   NonTreated
740 350 1   NonTreated
741 350 1   NonTreated
742 350 1   NonTreated
743 350 1   NonTreated
744 350 1   NonTreated
745 350 1   NonTreated
746 350 1   NonTreated
747 350 1   NonTreated
748 350 1   NonTreated
749 350 0   NonTreated
750 351 1   NonTreated
751 351 1   NonTreated
752 351 1   NonTreated
753 351 0   NonTreated
754 352 0   NonTreated
755 353 1   NonTreated
756 353 0   NonTreated
757 354 1   NonTreated
758 354 0   NonTreated
759 355 1   Treated
760 355 0   Treated
761 356 0   NonTreated
762 357 1   NonTreated
763 357 0   NonTreated
764 358 0   NonTreated
765 359 0   Treated
766 360 0   Treated
767 361 1   NonTreated
768 361 0   NonTreated
769 362 0   Treated
770 363 0   Treated
771 364 0   Treated
772 365 0   NonTreated
773 366 1   Treated
774 366 0   Treated
775 367 0   Treated
776 368 1   NonTreated
777 368 1   NonTreated
778 368 0   NonTreated
779 369 1   NonTreated
780 369 0   NonTreated
781 370 1   NonTreated
782 370 1   NonTreated
783 370 0   NonTreated
784 371 0   Treated
785 372 0   NonTreated
786 373 0   Treated
787 374 0   Treated
788 375 0   Treated
789 376 0   NonTreated
790 377 0   Treated
791 378 1   NonTreated
792 378 1   NonTreated
793 378 0   NonTreated
794 379 1   Treated
795 379 1   Treated
796 379 1   Treated
797 379 1   Treated
798 379 1   Treated
799 379 0   Treated
800 380 0   NonTreated
801 381 0   Treated
802 382 0   NonTreated
803 383 1   Treated
804 383 0   Treated
805 384 0   Treated
806 385 0   Treated
807 386 0   Treated
808 387 0   NonTreated
809 388 0   NonTreated
810 389 1   Treated
811 389 1   Treated
812 389 1   Treated
813 389 0   Treated
814 390 0   NonTreated
815 391 0   Treated
816 392 1   NonTreated
817 392 0   NonTreated
818 393 1   NonTreated
819 393 1   NonTreated
820 393 1   NonTreated
821 393 1   NonTreated
822 393 1   NonTreated
823 393 0   NonTreated
824 394 1   Treated
825 394 0   Treated
826 395 1   Treated
827 395 0   Treated
828 396 1   Treated
829 396 1   Treated
830 396 1   Treated
831 396 1   Treated
832 396 1   Treated
833 396 0   Treated
834 397 1   NonTreated
835 397 1   NonTreated
836 397 1   NonTreated
837 397 0   NonTreated
838 398 1   Treated
839 398 0   Treated
840 399 1   NonTreated
841 399 1   NonTreated
842 399 1   NonTreated
843 399 1   NonTreated
844 399 1   NonTreated
845 399 1   NonTreated
846 399 1   NonTreated
847 399 1   NonTreated
848 399 1   NonTreated
849 399 1   NonTreated
850 399 1   NonTreated
851 399 0   NonTreated
852 400 0   Treated
853 401 1   NonTreated
854 401 1   NonTreated
855 401 1   NonTreated
856 401 1   NonTreated
857 401 1   NonTreated
858 401 0   NonTreated
859 402 1   NonTreated
860 402 0   NonTreated
861 403 0   Treated

Answer 1

您的問題不在發布的代碼中，而是在發布的代碼中。 您沒有成功創建readm 。 為了表明這一點，運行以下代碼：

proc print data=readm (obs=9);
run;

（ obs=僅用於將列表限制為9個觀測值。）以某種方式，必須告知SAS您的第四列是文本列

你可能寫了一些

data readm;
    infile 'C:\<some path>\<some file>';
    input Oss   id  event   chemo;
run;

我會讀為

data readm;
    infile 'C:\<some path>\<some file>' truncover dsd dlm='09'x;
    input Oss   id  event   chemo $9.;
run;

在這

• dcd指定您有一個定界符
• dlm='09'x指定分隔符是制表符
• $ 9。 指定chemo字段為最多9個字符的字符字段。
• truncover指定您不想閱讀下一行以在下一行找到“ chemo”字段的最后一個字符

如果不是真的，那么請告訴我們您是如何創建/導入readm ，我們將看到可以做什么。

免責聲明：此代碼未經測試。 如果錯誤，請通知我，我將對其進行調試。