A.randbetween能返回的最大整數(shù) B.randbetween能返回的數(shù)值中不包含的數(shù)字 C.randbetween能返回的最小整數(shù) D.randbetween能返回的數(shù)值中包含的數(shù)字
A.從第幾個(gè)字符開始查找 B.需要查找的字符 C.指定查找的字符串 D.查找次數(shù)