1 回答右邊顯示：Notice: Undefined variable: is1 in /808/RSu/index.php on line 6 NULL Notice: Undefined variable: is2 in /808/RSu/index.php on line 7 NULL

1 回答Notice: Undefined variable: my_Book in /54/758/1rWz/index.php on line 10

2 回答PHP Notice: Undefined variable: sum in index.php on line 8 PHP Notice: Undefined variable: sum in index.php on line 12 總分: 平均分:0 數(shù)學(xué)比英語(yǔ)高的分?jǐn)?shù):8 英語(yǔ)成績(jī)的平方:12100

2 回答為什么會(huì)出現(xiàn)Notice: Undefined variable: nath in /54/878/F9mg/index.php on line 8 是什么原因?

1 回答為什么提示這個(gè)Notice: Undefined variable: php_errormsg in /54/885/CW7P/index.php on line 3 出錯(cuò)了，錯(cuò)誤原因是：