添加挂账公司清除按钮

src/components/exam/ExamAddonPanel.tsx

@@ -316,6 +316,13 @@ export const ExamAddonPanel = ({ client, onGoToSign }: ExamAddonPanelProps) => {
     setIsAccountCompanyDropdownOpen(false);
   };
 
+  // 清空挂账公司
+  const handleClearAccountCompany = () => {
+    setAccountCompany('');
+    setAccountCompanySearch('');
+    setIsAccountCompanyDropdownOpen(false);
+  };
+
   // 结算方式选项
   const paymentMethodOptions: Array<{ value: 'self' | 'account'; label: string }> = [
     { value: 'self', label: '自费' },
@@ -838,10 +845,25 @@ export const ExamAddonPanel = ({ client, onGoToSign }: ExamAddonPanelProps) => {
                     }}
                     placeholder={'请输入公司名称'}
                     className='w-full outline-none text-xs bg-transparent'
+                    onClick={(e) => e.stopPropagation()}
                   />
-                  <span className={cls('text-gray-400 transition-transform text-[10px]', isAccountCompanyDropdownOpen && 'rotate-180')}>
-                    ▼
-                  </span>
+                  <div className='flex items-center gap-1'>
+                    {accountCompanySearch && (
+                      <button
+                        type='button'
+                        onClick={(e) => {
+                          e.stopPropagation();
+                          handleClearAccountCompany();
+                        }}
+                        className='text-gray-400 hover:text-gray-600 transition-colors text-sm leading-none w-4 h-4 flex items-center justify-center'
+                      >
+                        ×
+                      </button>
+                    )}
+                    <span className={cls('text-gray-400 transition-transform text-[10px]', isAccountCompanyDropdownOpen && 'rotate-180')}>
+                      ▼
+                    </span>
+                  </div>
                 </div>
                 {isAccountCompanyDropdownOpen && (
                   <div className='absolute z-50 w-full bottom-full mb-1 bg-white border border-gray-300 rounded-lg shadow-lg overflow-hidden max-h-[320px] overflow-y-auto'>