A. 123 B. 123.000000 C. 123.0 D. "123"
Array ( [1] => 123,456 [2] => 321,567 [3] => 987,qwe) B. Array ( [0] => 123,456 [1] => 321,567 [2] => 987,qwe) C. Array ( [1] => 123,456; [2] => 321,567 ;[3] => 987,qwe) D. Array ( [0] => 123,456;[1] => 321,567 ;[2] => 987,qwe)
A. 21 B. 10 C. false D. 9
A. 好 B. 好好 C. 乱码 D. 好好学习
A. 666.99 B. 666.00 C. 666 D. 700
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