如何使用jquery更改标签的文本，使其与从选择框中选择的值相同？
我有一个标签：如何使用jquery更改标签的文本，使其与从选择框中选择的值相同？,jquery,select,label,option,Jquery,Select,Label,Option,我有一个标签： <label class="plan_code" id="plan_code-value">010</label> 010 当使用Jquery选择某个选项时，我试图更改其默认文本 <select id="plan_code"> <option value="010" class="odd">010</option>
<label class="plan_code" id="plan_code-value">010</label>
010
<select id="plan_code">
<option value="010" class="odd">010</option>
<option value="020" class="even">020</option>
<option value="030" class="odd">030</option>
<option value="040" class="even">040</option>
<option value="041" class="odd">041</option>
<option value="050" class="even">050</option>
<option value="060" class="odd">060</option>
<option value="070" class="even">070</option>
<option value="080" class="odd">080</option>
<option value="081" class="even">081</option>
<option value="082" class="odd">082</option>
<option value="090" class="even">090</option>
<option value="100" class="odd">100</option>
<option value="110" class="even">110</option>
<option value="121" class="odd">121</option>
<option value="130" class="even">130</option>
<option value="140" class="odd">140</option>
<option value="141" class="even">141</option>
<option value="150" class="odd">150</option>
<option value="160" class="even">160</option>
<option value="170" class="odd">170</option>
<option value="180" class="even">180</option>
<option value="190" class="odd">190</option>
<option value="200" class="even">200</option>
<option value="210" class="odd">210</option>
<option value="220" class="even">220</option>
<option value="230" class="odd">230</option>
<option value="240" class="even">240</option>
<option value="241" class="odd">241</option>
<option value="250" class="even">250</option>
<option value="260" class="odd">260</option>
<option value="265" class="even">265</option>
<option value="270" class="odd">270</option>
<option value="280" class="even">280</option>
<option value="290" class="odd">290</option>
<option value="301" class="even">301</option>
<option value="303" class="odd">303</option>
<option value="304" class="even">304</option>
<option value="305" class="odd">305</option>
<option value="306" class="even">306</option>
<option value="310" class="odd">310</option>
<option value="320" class="even">320</option>
<option value="332" class="odd">332</option>
<option value="333" class="even">333</option>
<option value="339" class="odd">339</option>
<option value="340" class="even">340</option>
<option value="350" class="odd">350</option>
<option value="361" class="even">361</option>
<option value="362" class="odd">362</option>
<option value="363" class="even">363</option>
<option value="364" class="odd">364</option>
<option value="370" class="even">370</option>
<option value="380" class="odd">380</option>
<option value="389" class="even">389</option>
<option value="390" class="odd">390</option>
<option value="392" class="even">392</option>
<option value="400" class="odd">400</option>
<option value="405" class="even">405</option>
<option value="410" class="odd">410</option>
<option value="415" class="even">415</option>
<option value="432" class="odd">432</option>
<option value="430" class="even">430</option>
<option value="439" class="odd">439</option>
<option value="441" class="even">441</option>
<option value="443" class="odd">443</option>
<option value="450" class="even">450</option>
<option value="460" class="odd">460</option>
<option value="470" class="even">470</option>
<option value="471" class="odd">471</option>
<option value="510" class="even">510</option>
<option value="520" class="odd">520</option>
<option value="530" class="even">530</option>
<option value="542" class="odd">542</option>
<option value="550" class="even">550</option>
<option value="560" class="odd">560</option>
<option value="570" class="even">570</option>
<option value="580" class="odd">580</option>
<option value="582" class="even">582</option>
<option value="590" class="odd">590</option>
<option value="600" class="even">600</option>
<option value="610" class="odd">610</option>
<option value="611" class="even">611</option>
<option value="621" class="odd">621</option>
<option value="630" class="even">630</option>
<option value="640" class="odd">640</option>
<option value="650" class="even">650</option>
<option value="660" class="odd">660</option>
<option value="670" class="even">670</option>
<option value="680" class="odd">680</option>
<option value="690" class="even">690</option>
<option value="700" class="odd">700</option>
<option value="710" class="even">710</option>
<option value="720" class="odd">720</option>
<option value="730" class="even">730</option>
<option value="740" class="odd">740</option>
<option value="741" class="even">741</option>
<option value="751" class="odd">751</option>
<option value="760" class="even">760</option>
<option value="765" class="odd">765</option>
<option value="770" class="even">770</option>
<option value="777" class="odd">777</option>
<option value="780" class="even">780</option>
<option value="790" class="odd">790</option>
<option value="800" class="even">800</option>
<option value="801" class="odd">801</option>
<option value="803" class="even">803</option>
<option value="804" class="odd">804</option>
<option value="805" class="even">805</option>
<option value="806" class="odd">806</option>
<option value="808" class="even">808</option>
<option value="810" class="odd">810</option>
<option value="820" class="even">820</option>
<option value="833" class="odd">833</option>
<option value="834" class="even">834</option>
<option value="840" class="odd">840</option>
<option value="851" class="even">851</option>
<option value="856" class="odd">856</option>
<option value="870" class="even">870</option>
<option value="88" class="odd">88</option>
<option value="889" class="even">889</option>
<option value="890" class="odd">890</option>
<option value="892" class="even">892</option>
<option value="900" class="odd">900</option>
<option value="905" class="even">905</option>
<option value="910" class="odd">910</option>
<option value="915" class="even">915</option>
<option value="923" class="odd">923</option>
<option value="932" class="even">932</option>
<option value="934" class="odd">934</option>
<option value="936" class="even">936</option>
<option value="937" class="odd">937</option>
<option value="939" class="even">939</option>
<option value="941" class="odd">941</option>
<option value="943" class="even">943</option>
<option value="950" class="odd">950</option>
<option value="960" class="even">960</option>
<option value="970" class="odd">970</option>
<option value="971" class="even">971</option>
<option value="982" class="odd">982</option>
</select>
010
020
030
040
041
050
060
070
080
081
082
090
100
110
121
130
140
141
150
160
170
180
190
200
210
220
230
240
241
250
260
265
270
280
290
301
303
304
305
306
310
320
332
333
339
340
350
361
362
363
364
370
380
389
390
392
400
405
410
415
432
430
439
441
443
450
460
470
471
510
520
530
542
550
560
570
580
582
590
600
610
611
621
630
640
650
660
670
680
690
700
710
720
730
740
741
751
760
765
770
777
780
790
800
801
803
804
805
806
808
810
820
833
834
840
851
856
870
88
889
890
892
900
905
910
915
923
932
934
936
$(document).ready(function() {
$('#plan_code').change(function() {
$('#plan_code-value').html($(this).val());
});
});