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Java ??? ?? ??, parsXXX(String) ?? valueOf(String)? ???? ??????

?? ?? ??? ????parseparseXXX(String)? valueOf(String)? ???? ??????

漂亮男人 2017-05-17 10:03:37 0  1  989

'this.conexao'? null??? 'java.sql.Connection.prepareStatement(String)'? ??? ? ????.

? ??? ?? ???? ??? ????? ??? ??? ??? ??? ??? ? ??? ????? ----->java.lang.NullPointerException:Cannotinvoke"java.sql.Connection.prepareStatement (String)" ???? "this.conexao"? ?? ????. ??? ??? ?? packagebr.com.mycompany.telas;imp???.

P粉523335026 2024-03-26 18:12:36 0  1  634

javascript - weexpack ??? ?? 'escape-string-regexp' ??? ?? ? ????.

weexpack@0.4.2node@7.7.0npm@5.0.4 npm run Serve? ??? ? ./temp?entry=trueModule build failed: ??: 'escape-string-regexp' ??? ?? ? ??(??)?? ?? ??? ?????. ?? ?? ??: " /???/?...

學(xué)習(xí)ing 2017-06-30 09:59:18 0  4  2639

Java ??? ??? ?? ??? ??? ????? ???? ?? ? ?? ???? ??

public String post(String strURL,String params) { {??...} {??...}

某草草 2017-05-27 17:40:57 0  3  1424

PHP?? Java? PbeWithMd5AndDes ??? ? ?? ??? ???? ??

public static String encrypt(String key, String plainText){ ? String encryptTxt = ""; ? { ? ? ?byte[] salt = new byte[8];? ??? ???. ? ? ????????? md =

七 2020-07-31 11:37:47 0  0  2630

Java8? ???? ???? ?? ???? ??? ? ??? ??? ?????

??: cp?? ?DataTime? ?????. ?? ??? deviceDataMap? ??? ??? ????? Map<String,Map<String,String>> deviceDataMap = new HashMap<> String cp = "DataTime=200405060101.

代言 2017-06-23 09:13:05 0  1  1029

Java? ???? json ???? kafka? ??? ??

????? STRING ??? ???? Java? ?? ?? ??? ? ? ????. Java? ??? ???? ??? producer.send(new KeyedMessage&lt;String, HashMap&lt;String, String&gt;&gt;(topic,message); ...? ?? ???? ??? ??? ??? ??? ? ????.

我想大聲告訴你 2017-05-17 10:05:08 0  1  1393

PHP ? OCR? ???? ??? ???? ???? ?? ???? ??? ???? ?? ???? ??? ????? ??? ?? ????

??? ? ?? ?????: <?php/** * ?? ?? * * @param string $url ?? * @param array $headers Http Header * @param string $body content * @return string */function post($url , $??,

P粉269094165 2023-08-09 19:24:08 0  0  486

??: "'string | string' ??? ??? 'string' ??? ??? ??? ? ????."

???? ??? ?? ??? ???? ?? API ??? ??? ?? TypeScript ? axios? ???? Vue ????? ?? ????. ? auth.ts ??? ResetPassword ??? ??? ????. ):Promise<??>{returnnewPromise<any&

P粉232409069 2023-08-25 11:44:28 0  1  861

array_walk()? ??? ? ????

array(3) { ?["a"]=> ?string(8) "wuyanzhu" ?["b"]=> ?string(13) "huangxiaoming" ?["c"]=> ?string(8) "ninzet

益?zhèn)?2017-10-17 16:41:38 0  2  1403

Laravel 9? ?? ???? ??? ? ?? ???? ???? ?? ??? ?? ????.

????? ?? ???? ??? ????. publicfunctionup(){Schema::create('questions',function(Blueprint$table){$table->id();$table->string('title'); $table ->string('slug');$table->string('image')->nullable();$ta

P粉262073176 2023-08-30 13:15:31 0  1  637

Axios? baseURL? VITE_API_URL? ??? ? Typescript ??? ?????.

Vite ? Typescript? ???? ??? Vue3 ??????? ?? ???? axios ??? ????. ??? 'baseURL'? ?? ??? ?? ??????? ??? ?????. ?? 'string|'boolean|undefine'? 'string|undefine' ??? ??? ? ????. 'false' ??? 'string|' ??? ??? ? ????.

P粉014218124 2024-03-19 16:45:32 0  1  908

?? ???? ?? ??

?? ??? ?? ??? ??? ??? ???? array(size=2)0=>array(size=12)'id_objects'=>string'2876'(length=4)'room_val'=>string'1882840,1882841,1882842'(length =23)'date_from'=>string'2022-06-22'(??=10)'date_to'=>str

P粉252423906 2024-02-21 20:42:42 0  1  413

$zz = '/[0-5]\w+/'; + ??? ??? ?????? ??? ?? ??? ? ???? ?????

<?php$zz = '/[0-5]\w+/';$string = '1C';$string2 = '1C$';if(preg_match($zz, $string, $matches)){ echo ' ???? ??? ??? ????. ';

益?zhèn)?2017-10-21 12:04:43 0  3  1714

?? ?? '^'? ???? ??

<?phpheader('Content-Type: text/html; charset=utf-8');$pattern='/[^0-9A-Za-z_]/';$string='!$@!#%$ #^##';if(preg_match($pattern, $string,$match)){??? echo '

Will 2017-11-08 17:11:58 0  2  2607

??? "." ?? ??????.

<?$zz = '/gg.+gg/';$string = "ABC1ABC";$if(preg_match($zz,$string,$matches)){ echo '???, ??? ??? ????:'; ??);}else{ &nbsp

phpcn_u10161 2017-07-21 10:44:21 0  2  1644

Java? ?? ??? ?? ??

1. ??? ??? ?? ?? ??? ??? ??? ?????? 2. ??? ??? ?? ?? ??? ??? ??? ??? ??? ?????? String a = new String("b") a? String ???? ??? ? ????? 3. ??? ??? ??? ??? ?????? ??? ???? ???? ????

給我你的懷抱 2017-05-27 17:40:20 0  1  722

@? ???? ??

@$string = file_get_contents('message.txt');

鐘嘉富 2017-10-15 19:11:08 0  2  1528

foreach ???

array(70) { [0]=> array(2) { ["lineLyric"]=> string(18) "?? ?? - ???" ["time"]=> string(3) "0.0

小白123 2021-04-30 10:54:20 1  0  888

???? ???? ????? ? ? ??? ?? ?????.

functionencrypt($string,$key){$method="BF-CBC";$iv=random_bytes(openssl_cipher_iv_length($method));$options=0;$key=hash("sha256",$key);returnopenssl_encrypt( $string,$??,$key,$o

P粉186904731 2024-01-10 17:43:06 0  1  520