''

题目给定一个字符串所表示的括号序列，包含以下字符： '(', ')', '{', '}', '[' and ']'，判定是否是有效的

Error[2]: Invalid argument supplied for foreach(), File: /www/wwwroot/roclinux.cn/tmp/view_htm_thread_list.inc.htm, Line: 71
File: /www/wwwroot/roclinux.cn/tmp/view_htm_tag.htm, Line: 32, include(/www/wwwroot/roclinux.cn/tmp/view_htm_thread_list.inc.htm)
File: /www/wwwroot/roclinux.cn/tmp/route_tag.php, Line: 114, include(/www/wwwroot/roclinux.cn/tmp/view_htm_tag.htm)
File: /www/wwwroot/roclinux.cn/tmp/index.inc.php, Line: 138, include(/www/wwwroot/roclinux.cn/tmp/route_tag.php)
File: /www/wwwroot/roclinux.cn/index.php, Line: 29, include(/www/wwwroot/roclinux.cn/tmp/index.inc.php)

admin 2023-6-30

67 0
NULL, '',0 '0'的区别

NULL '' 0 '0'的区别

admin 2023-6-26

80 0