Calendar calendar = Calendar.getInstance();
int num = calendar.getMaximum(calendar.DAY_OF_MONTH);
System.out.println(num);
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Calendar计算的本月天数为什么总是31???
为什么我的代码运行后总是31,而不是这个月的实际天数29呢? Calendar calendar = Calendar.getInstance(); int num = calendar.getMaximum(calendar.DAY_OF_MONTH); System.out.println(num);