测试代码

//原内容
"<img src=\"{$url}\" alt=\"{$escaped}\" title=\"{$escaped}\" >"
"<img src=\"{$self->_definitions[$matches[2]]}\" alt=\"{$escaped}\" title=\"{$escaped}\">"
//替换后
"<img src=\"{$url}\" alt=\"{$escaped}\" title=\"{$escaped}\" style=\"max-width:460px;max-height:600px; \">"
"<img src=\"{$self->_definitions[$matches[2]]}\" alt=\"{$escaped}\" title=\"{$escaped}\" style=\"max-width:460px;max-height:600px; \">"