我试图在日蚀时开发一个应用程序,当按下按钮时随机从字符串中显示文本。
有一个简单的解决方案。 您可以使用随机( ) 类, 或者使用 Math. random( ) 将字符串中的字符串转换为字符串 。 然后您选择其中的随机位数, 直到它消失 。
不过,你只需要确保, 数组的大小总是被检查, 这样你就不会碰到外部的例外 。
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