{"id":791,"date":"2007-12-10T15:55:00","date_gmt":"2007-12-10T15:55:00","guid":{"rendered":"\/post\/1386\/09\/19\/daa9d8a7d8b1d8a8d8b1d8af-Lock-Statement"},"modified":"2026-06-28T17:50:25","modified_gmt":"2026-06-28T17:50:25","slug":"%da%a9%d8%a7%d8%b1%d8%a8%d8%b1%d8%af-lock-statement","status":"publish","type":"post","link":"https:\/\/mesbahi.net\/fa\/blog\/1386\/09\/19\/%da%a9%d8%a7%d8%b1%d8%a8%d8%b1%d8%af-lock-statement\/","title":{"rendered":"\u06a9\u0627\u0631\u0628\u0631\u062f Lock Statement"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" height=\"48\" width=\"48\" align=\"right\" border=\"0\" style=\"border-top-width: 0px; border-left-width: 0px; border-bottom-width: 0px; margin: 0px 0px 0px 10px; border-right-width: 0px\" src=\"http:\/\/mesbahi.net\/fa\/wp-content\/uploads\/sites\/3\/pictures\/migration\/WindowsLiveWriter\/LockStatement_E00B\/c_3.png\" alt=\"c\"> \u06cc\u06a9\u06cc \u0627\u0632 \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u062c\u0627\u0644\u0628\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u06a9\u062b\u0631 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0646\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0627\u06cc\u0631\u0627\u0646\u06cc \u062f\u06cc\u062f\u0647 \u0645\u06cc\u0634\u0647 \u0627\u06cc\u0646\u0647 \u06a9\u0647 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0631\u0648 \u062f\u0631 \u062d\u0627\u0644\u062a \u0627\u06cc\u062f\u0647 \u0622\u0644 \u062f\u0631 \u0646\u0638\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u0646 \u0648 \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u200c\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062f\u0627\u062e\u0644 \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0645\u0633\u0627\u0626\u0644\u06cc \u0645\u062b\u0644 \u0646\u0627\u062f\u06cc\u062f\u0647 \u06af\u0631\u0641\u062a\u0646 \u0634\u06cc\u0621 \u06af\u0631\u0627\u06cc\u06cc \u0648 \u2026 exception handling \u0631\u0648 \u0645\u06cc\u0634\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u06cc\u062a\u06cc\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u067e\u0631\u0648\u0633\u0647 \u062a\u0648\u0644\u06cc\u062f \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062f\u0631 \u0637\u0648\u0644 \u062f\u0648\u0631\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0634\u0627\u0648\u0631 \u062f\u0631 \u06a9\u0646\u0627\u0631 \u062a\u06cc\u0645\u200c\u0647\u0627 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u0645 \u0628\u0647 \u06a9\u0631\u0627\u062a \u062f\u06cc\u062f\u0647\u200c\u0627\u0645 \u06a9\u0647 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u062f\u0686\u0627\u0631 \u0645\u0634\u06a9\u0644 \u0634\u062f\u0647 \u0627\u0648\u0646\u0645 \u0628\u0647 \u062e\u0627\u0637\u0631 \u0639\u062f\u0645 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u062e\u0637\u0627\u0647\u0627 \u06cc\u0627 \u0645\u0648\u0627\u0631\u062f \u062e\u0627\u0635\u06cc \u06a9\u0647 \u062f\u0631 \u062d\u06cc\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0627\u0631\u0628\u0631 \u067e\u06cc\u0634 \u0645\u06cc\u0627\u062f. \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u0645\u06a9\u0627\u0646\u0627\u062a #C \u06a9\u0647 \u0645\u062a\u0623\u0633\u0641\u0627\u0646\u0647 \u06a9\u0645\u062a\u0631 \u0627\u0632\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u0634\u0647 Lock \u06a9\u0631\u062f\u0646 \u0622\u0628\u062c\u06a9\u062a \u0647\u0627\u0633\u062a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lock \u0686\u06cc\u0633\u062a\u061f \u0648 \u0686\u0631\u0627 Lock\u061f<br><\/strong>Lock \u0645\u0648\u062c\u0628 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0639\u062f\u0645 \u0627\u0645\u06a9\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062a\u0631\u062f\u200c\u0647\u0627 (Thread) \u0627\u0632 \u0642\u0637\u0639\u0647 \u06a9\u062f\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0648\u0636\u0639\u06cc\u062a \u0628\u062d\u0631\u0627\u0646\u06cc \u0628\u0647 \u0633\u0631 \u0645\u06cc\u200c\u0628\u0631\u062f (\u0648\u0636\u0639\u06cc\u062a \u0628\u062d\u0631\u0627\u0646\u06cc \u062a\u0639\u0628\u06cc\u0631 \u062e\u0648\u062f \u0645\u0627\u06cc\u06a9\u0631\u0648\u0633\u0627\u0641\u062a\u0647\u060c \u0628\u0647 \u0639\u0628\u0627\u0631\u062a \u062f\u06cc\u06af\u0631 \u06a9\u062f\u06cc \u06a9\u0647 \u0628\u0627\u06cc\u062f Block \u0628\u0645\u0648\u0646\u0647 \u062a\u0627 \u0648\u0636\u0639\u06cc\u062a\u0634 \u0645\u0634\u062e\u0635 \u0634\u0647) . Lock \u06a9\u0631\u062f\u0646 \u0622\u0628\u062c\u06a9\u062a \u0628\u0627\u0639\u062b \u0627\u0646\u062a\u0638\u0627\u0631 \u0648 \u06cc\u0627 \u0628\u0644\u0648\u06a9\u0647 \u0634\u062f\u0646\u00a0 \u062a\u0631\u062f\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u062f\u060c \u062a\u0627 \u0632\u0645\u0627\u0646 \u0622\u0632\u0627\u062f \u0634\u062f\u0646 \u0622\u0628\u062c\u06a9\u062a \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0645\u0648\u0636\u0648\u0639 \u0631\u0648 \u0628\u0647 \u0635\u0648\u0631\u062a \u06a9\u0627\u0645\u0644\u0627\u064b \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u062f:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>\/\/ Lock \u0645\u062b\u0627\u0644\nusing System;\nusing System.Threading;\n\nclass Account {\n  private Object thisLock = new Object();\n  int balance;\n\n  Random r = new Random();\n\n  public Account(int initial) {\n    balance = initial;\n  }\n\n  int Withdraw(int amount) {\n    \/\/ \u0627\u06cc\u0646 \u0634\u0631\u0637 \u0647\u0631\u06af\u0632 \u0628\u0631\u0642\u0631\u0627\u0631 \u0646\u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u062e\u0634 \u0644\u0627\u06a9 \u0641\u0639\u0627\u0644 \u0634\u0648\u062f\n\n    if (balance &lt; 0) {\n      throw new Exception(\"Negative Balance\");\n    }\n\n    \/\/ \u062a\u0627\u062b\u06cc\u0631 \u0644\u0627\u06a9 \u0631\u0627 \u062f\u0631 \u062e\u0637\u0648\u0637 \u0628\u0639\u062f \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u06cc\u062f\n\n    lock (thisLock) {\n      if (balance >= amount) {\n        Console.WriteLine(\"Balance before Withdrawal :  \" + balance);\n        Console.WriteLine(\"Amount to Withdraw        : -\" + amount);\n        balance = balance - amount;\n        Console.WriteLine(\"Balance after Withdrawal  :  \" + balance);\n        return amount;\n      } else {\n        return 0;  \/\/ \u062a\u0631\u0627\u06a9\u0646\u0634 \u0631\u062f \u062e\u0648\u0627\u0647\u062f \u0634\u062f\n      }\n    }\n  }\n\n  public void DoTransactions() {\n    for (int i = 0; i &lt; 100; i++) {\n      Withdraw(r.Next(1, 100));\n    }\n  }\n}\n\nclass Test {\n  static void Main() {\n    Thread[] threads = new Thread&#91;10&#93;;\n    Account acc = new Account(1000);\n    for (int i = 0; i &lt; 10; i++) {\n      Thread t = new Thread(new ThreadStart(acc.DoTransactions));\n      threads&#91;i&#93; = t;\n    }\n    for (int i = 0; i &lt; 10; i++) {\n      threads&#91;i&#93;.Start();\n    }\n  }\n}\n<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">\/\/<\/span><span style=\"color: #D8DEE9FF\"> Lock \u0645\u062b\u0627\u0644<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">using<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">System<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">using<\/span><span style=\"color: #D8DEE9FF\"> System.Threading;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">class Account {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">private<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">Object<\/span><span style=\"color: #D8DEE9FF\"> thisLock <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> new <\/span><span style=\"color: #81A1C1\">Object<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> balance;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  Random r <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> new Random<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  public Account(<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> initial) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    balance <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> initial;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  }<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> Withdraw(<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> amount) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">\/\/<\/span><span style=\"color: #D8DEE9FF\"> \u0627\u06cc\u0646 \u0634\u0631\u0637 \u0647\u0631\u06af\u0632 \u0628\u0631\u0642\u0631\u0627\u0631 \u0646\u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u062e\u0634 \u0644\u0627\u06a9 \u0641\u0639\u0627\u0644 \u0634\u0648\u062f<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (balance <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #81A1C1\">throw<\/span><span style=\"color: #D8DEE9FF\"> new Exception(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Negative Balance<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    }<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">\/\/<\/span><span style=\"color: #D8DEE9FF\"> \u062a\u0627\u062b\u06cc\u0631 \u0644\u0627\u06a9 \u0631\u0627 \u062f\u0631 \u062e\u0637\u0648\u0637 \u0628\u0639\u062f \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u06cc\u062f<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    lock (thisLock) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (balance <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> amount) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        Console.WriteLine(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Balance before Withdrawal :  <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> balance);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        Console.WriteLine(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Amount to Withdraw        : -<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> amount);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        balance <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> balance <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> amount;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        Console.WriteLine(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Balance after Withdrawal  :  <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> balance);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> amount;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      } <\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">;  <\/span><span style=\"color: #81A1C1\">\/\/<\/span><span style=\"color: #D8DEE9FF\"> \u062a\u0631\u0627\u06a9\u0646\u0634 \u0631\u062f \u062e\u0648\u0627\u0647\u062f \u0634\u062f<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  }<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  public void DoTransactions<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> i <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">; i <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">100<\/span><span style=\"color: #D8DEE9FF\">; i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      Withdraw(r.Next(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">, <\/span><span style=\"color: #B48EAD\">100<\/span><span style=\"color: #D8DEE9FF\">));<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">class Test {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">static<\/span><span style=\"color: #D8DEE9FF\"> void Main<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    Thread[] threads <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> new Thread&#91;10&#93;;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    Account acc <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> new Account(<\/span><span style=\"color: #B48EAD\">1000<\/span><span style=\"color: #D8DEE9FF\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> i <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">; i <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">; i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      Thread t <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> new Thread(new ThreadStart(acc.DoTransactions));<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      threads&#91;i&#93; <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> t;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">int<\/span><span style=\"color: #D8DEE9FF\"> i <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">; i <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">; i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      threads&#91;i&#93;.<\/span><span style=\"color: #81A1C1\">Start<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">}<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u06cc\u06a9\u06cc \u0627\u0632 \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u062c\u0627\u0644\u0628\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u06a9\u062b\u0631 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0646\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0627\u06cc\u0631\u0627\u0646\u06cc \u062f\u06cc\u062f\u0647 \u0645\u06cc\u0634\u0647 \u0627\u06cc\u0646\u0647 \u06a9\u0647 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0631\u0648 \u062f\u0631 \u062d\u0627\u0644\u062a \u0627\u06cc\u062f\u0647 \u0622\u0644 \u062f\u0631 \u0646\u0638\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u0646 \u0648 \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u200c\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062f\u0627\u062e\u0644 \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0645\u0633\u0627\u0626\u0644\u06cc \u0645\u062b\u0644 \u0646\u0627\u062f\u06cc\u062f\u0647 \u06af\u0631\u0641\u062a\u0646 \u0634\u06cc\u0621 \u06af\u0631\u0627\u06cc\u06cc \u0648 \u2026 exception handling \u0631\u0648 \u0645\u06cc\u0634\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u06cc\u062a\u06cc\u0645\u200c\u062a\u0631\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u067e\u0631\u0648\u0633\u0647 \u062a\u0648\u0644\u06cc\u062f \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a. \u062f\u0631 &#8230; <a title=\"\u06a9\u0627\u0631\u0628\u0631\u062f Lock Statement\" class=\"read-more\" href=\"https:\/\/mesbahi.net\/fa\/blog\/1386\/09\/19\/%da%a9%d8%a7%d8%b1%d8%a8%d8%b1%d8%af-lock-statement\/\" aria-label=\"\u062f\u0631\u0628\u0627\u0631\u06c0 \u06a9\u0627\u0631\u0628\u0631\u062f Lock Statement \u0628\u06cc\u0634\u062a\u0631 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f\">\u0627\u062f\u0627\u0645\u0647<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-791","post","type-post","status-publish","format-standard","hentry","category-net"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u06a9\u0627\u0631\u0628\u0631\u062f Lock Statement - \u0627\u0645\u06cc\u0646 \u0645\u0635\u0628\u0627\u062d\u06cc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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