如何利用java定时器使一个变量做到一秒一变。例如变量x初值是1， 然后第一秒变成2，第二秒变成3，以此类推。-How to use java to do a second timer to make a change to a variable. For example, initial value of the variable x is 1, then seconds into the first 2 seconds into the second 3, and so on.

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