diff --git a/src/admin/member_toadmin.php b/src/admin/member_toadmin.php
index 4a4f4244..a47be1a4 100644
--- a/src/admin/member_toadmin.php
+++ b/src/admin/member_toadmin.php
@@ -18,7 +18,7 @@ $row = array();
 if ($dopost == "toadmin") {
     $pwd = trim($pwd);
     if ($pwd != '' && preg_match("#[^0-9a-zA-Z_@!\.-]#", $pwd)) {
-        ShowMsg('密码不合法，只能用[0-9a-zA-Z_@!.-]以内范围的字符', '-1', 0, 3000);
+        ShowMsg('密码不合法，使用[0-9a-zA-Z_@!.-]范围以内字符', '-1', 0, 3000);
         exit();
     }
     $safecodeok = substr(md5($cfg_cookie_encode.$randcode), 0, 24);
diff --git a/src/admin/sys_admin_user_add.php b/src/admin/sys_admin_user_add.php
index a4f4f7f4..1ec68b62 100644
--- a/src/admin/sys_admin_user_add.php
+++ b/src/admin/sys_admin_user_add.php
@@ -15,7 +15,7 @@ if (empty($dopost)) $dopost = '';
 if ($dopost == 'add') {
     CheckCSRF();
     if (preg_match("#[^0-9a-zA-Z_@!\.-]#", $pwd) || preg_match("#[^0-9a-zA-Z_@!\.-]#", $userid)) {
-        ShowMsg('密码或或会员名不合法，只能用[0-9a-zA-Z_@!.-]以内范围的字符', '-1', 0, 3000);
+        ShowMsg('密码或或会员名不合法，使用[0-9a-zA-Z_@!.-]范围以内字符', '-1', 0, 3000);
         exit();
     }
     $safecodeok = substr(md5($cfg_cookie_encode.$randcode), 0, 24);
diff --git a/src/admin/sys_admin_user_edit.php b/src/admin/sys_admin_user_edit.php
index 5a481054..1ad27cef 100644
--- a/src/admin/sys_admin_user_edit.php
+++ b/src/admin/sys_admin_user_edit.php
@@ -17,7 +17,7 @@ if ($dopost == 'saveedit') {
     CheckCSRF();
     $pwd = trim($pwd);
     if ($pwd != '' && preg_match("#[^0-9a-zA-Z_@!\.-]#", $pwd)) {
-        ShowMsg('密码不合法，只能用[0-9a-zA-Z_@!.-]以内范围的字符', '-1', 0, 3000);
+        ShowMsg('密码不合法，使用[0-9a-zA-Z_@!.-]范围以内字符', '-1', 0, 3000);
         exit();
     }
     $safecodeok = substr(md5($cfg_cookie_encode.$randcode), 0, 24);
diff --git a/src/admin/templets/member_edit.htm b/src/admin/templets/member_edit.htm
index 6b1fbee4..e8afe70a 100644
--- a/src/admin/templets/member_edit.htm
+++ b/src/admin/templets/member_edit.htm
@@ -36,7 +36,7 @@
 					<td>密码：</td>
 					<td>
 						<input type="text" name="pwd" id="pwd" class="admin-input-sm">
-						<span>（留空则不修改，只能用[0-9a-zA-Z_@!.-]以内范围的字符）</span>
+						<span>（留空则不修改，使用[0-9a-zA-Z_@!.-]范围以内字符）</span>
 					</td>
 				</tr>
 				<tr>
diff --git a/src/admin/templets/member_toadmin.htm b/src/admin/templets/member_toadmin.htm
index e48ce2e3..3b2e86d7 100644
--- a/src/admin/templets/member_toadmin.htm
+++ b/src/admin/templets/member_toadmin.htm
@@ -31,7 +31,7 @@
 				</tr>
 				<tr>
 					<td>密码：</td>
-					<td><input type="text" name="pwd" id="pwd" class="admin-input-sm">（留空则不修改，只能用[0-9a-zA-Z_@!.-]以内范围的字符）</td>
+					<td><input type="text" name="pwd" id="pwd" class="admin-input-sm">（留空则不修改，使用[0-9a-zA-Z_@!.-]范围以内字符）</td>
 				</tr>
 				<tr>
 					<td>类型：</td>
diff --git a/src/admin/templets/sys_admin_user_add.htm b/src/admin/templets/sys_admin_user_add.htm
index 65dcdcaf..18f6b482 100644
--- a/src/admin/templets/sys_admin_user_add.htm
+++ b/src/admin/templets/sys_admin_user_add.htm
@@ -23,7 +23,7 @@
 					<td width="260">会员名：</td>
 					<td>
 						<input type="text" name="userid" id="userid" class="admin-input-sm">
-						<span>（只能用[0-9a-zA-Z_@!.-]以内范围的字符）</span>
+						<span>（使用[0-9a-zA-Z_@!.-]范围以内字符）</span>
 					</td>
 				</tr>
 				<tr>
@@ -37,7 +37,7 @@
 					<td>密码：</td>
 					<td>
 						<input type="text" name="pwd" id="pwd" class="admin-input-sm">
-						<span>（只能用[0-9a-zA-Z_@!.-]以内范围的字符）</span>
+						<span>（使用[0-9a-zA-Z_@!.-]范围以内字符）</span>
 					</td>
 				</tr>
 				<tr>
diff --git a/src/admin/templets/sys_admin_user_edit.htm b/src/admin/templets/sys_admin_user_edit.htm
index c44bbd7f..b97d6e59 100644
--- a/src/admin/templets/sys_admin_user_edit.htm
+++ b/src/admin/templets/sys_admin_user_edit.htm
@@ -33,7 +33,7 @@
 					<td>密码：</td>
 					<td>
 						<input type="text" name="pwd" id="pwd" class="admin-input-sm">
-						<span>（留空则不修改，只能用[0-9a-zA-Z_@!.-]以内范围的字符）</span>
+						<span>（留空则不修改，使用[0-9a-zA-Z_@!.-]范围以内字符）</span>
 					</td>
 				</tr>
 				<tr>
diff --git a/src/install/install.html b/src/install/install.html
index 9b151739..71f30825 100644
--- a/src/install/install.html
+++ b/src/install/install.html
@@ -47,11 +47,12 @@
 								<legend class="text-success">数据库设置</legend>
 								<hr>
 								<div class="form-group">
-									<label for="dbtype" class="form-label">数据库类型<i class="fa fa-question-circle text-warning ml-2" data-toggle="tooltip" title="数据库类型一般为MySQL，类型SQLite用于开发调试，不建议生产中使用"></i></label>
+									<label for="dbtype" class="form-label">数据库类型</label>
 									<select id="dbtype" name="dbtype" class="form-control form-select">
 										<option value="mysql" selected>MySQL</option>
 										<?php if (extension_loaded("sqlite3")) {;?><option value="sqlite">SQLite</option><?php }?>
 									</select>
+									<div class="form-text">数据库类型一般为MySQL，则SQLite用于开发调试</div>
 								</div>
 								<div class="form-group server">
 									<label for="dbhost" class="form-label">数据库地址</label>
@@ -66,8 +67,9 @@
 									<input type="text" name="dbpwd" id="dbpwd" class="form-control" placeholder="请输入数据库密码">
 								</div>
 								<div class="form-group">
-									<label for="dbprefix" class="form-label">数据表前缀<i class="fa fa-exclamation-circle text-danger ml-2" data-toggle="tooltip" data-html="true" title="请注意DedeV6数据表前缀默认为<span class='text-danger'>biz_</span>"></i></label>
+									<label for="dbprefix" class="form-label">数据表前缀</label>
 									<input type="text" name="dbprefix" id="dbprefix" class="form-control" placeholder="biz_">
+									<div class="form-text text-danger">注意DedeV6数据表前缀默认为biz_</div>
 								</div>
 								<div class="form-group">
 									<label for="dbname" class="form-label">数据库名称</label>
@@ -88,16 +90,18 @@
 									<input type="text" name="webname" id="webname" class="form-control" placeholder="我的网站">
 								</div>
 								<div class="form-group">
-									<label for="adminuser" class="form-label">管理员账号<i class="fa fa-question-circle text-warning ml-2" data-toggle="tooltip" title="只能用[0-9a-zA-Z_@!.-]以内范围的字符"></i></label>
+									<label for="adminuser" class="form-label">管理员账号</label>
 									<input type="text" name="adminuser" id="adminuser" class="form-control" placeholder="admin">
+									<div class="form-text">使用[0-9a-zA-Z_@!.-]范围以内字符</div>
 								</div>
 								<div class="form-group">
 									<label for="adminpwd" class="form-label">管理员密码</label>
 									<input type="text" name="adminpwd" id="adminpwd" class="form-control" placeholder="admin">
 								</div>
 								<div class="form-group">
-									<label for="cmspath" class="form-label">安装目录<i class="fa fa-question-circle text-warning ml-2" data-toggle="tooltip" title="根目录安装时不必理会"></i></label>
+									<label for="cmspath" class="form-label">安装目录</label>
 									<input type="text" name="cmspath" id="cmspath" class="form-control" value="<?php echo $basepath;?>" placeholder="<?php echo $basepath;?>">
+									<div class="form-text">在根目录安装不需要填写此项</div>
 								</div>
 								<div class="text-right"><button type="submit" class="btn btn-success btn-md">安装</button></div>
 							</form>
@@ -133,9 +137,6 @@
 			        $(".form-group.server").show()
 			    }
 			});
-			$(function() {
-			    $('[data-toggle="tooltip"]').tooltip()
-			});
 		</script>
 	</body>
 </html>
\ No newline at end of file
diff --git a/src/system/memberlogin.class.php b/src/system/memberlogin.class.php
index f4b9b716..f081c1ec 100755
--- a/src/system/memberlogin.class.php
+++ b/src/system/memberlogin.class.php
@@ -46,7 +46,7 @@ function CheckUserID($uid, $msgtitle = '会员名', $ckhas = TRUE)
             }
         } else {
             if (preg_match("/[^0-9a-z@\.-]/i", $ck_uid[$i])) {
-                return $msgtitle.'只能用[0-9a-zA-Z_@!.-]以内范围的字符';
+                return $msgtitle.'使用[0-9a-zA-Z_@!.-]范围以内字符';
             }
         }
     }