Severity: Warning
Message: mysqli::real_connect(): (HY000/2002): Cannot assign requested address
Filename: mysqli/mysqli_driver.php
Line Number: 201
Backtrace:
File: /www/wwwroot/dash.konsole.xyz/application/core/MY_Controller.php
Line: 343
Function: __construct
File: /www/wwwroot/dash.konsole.xyz/application/controllers/Api.php
Line: 12
Function: __construct
File: /www/wwwroot/dash.konsole.xyz/index.php
Line: 316
Function: require_once
无法使用提供的设置连接到数据库服务器。
Filename: core/MY_Controller.php
Line Number: 343
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ASTVisitorc B s8 e Z d Z d Z d � Z d � Z d � Z d � Z RS( s Performs a depth-first walk of the AST
The ASTVisitor will walk the AST, performing either a preorder or
postorder traversal depending on which method is called.
methods:
preorder(tree, visitor)
postorder(tree, visitor)
tree: an instance of ast.Node
visitor: an instance with visitXXX methods
The ASTVisitor is responsible for walking over the tree in the
correct order. For each node, it checks the visitor argument for
a method named 'visitNodeType' where NodeType is the name of the
node's class, e.g. Class. If the method exists, it is called
with the node as its sole argument.
The visitor method for a particular node type can control how
child nodes are visited during a preorder walk. (It can't control
the order during a postorder walk, because it is called _after_
the walk has occurred.) The ASTVisitor modifies the visitor
argument by adding a visit method to the visitor; this method can
be used to visit a child node of arbitrary type.
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