I've used the following code to display header and footer in my pdf using itext.
HeaderFooter header=new HeaderFooter(new Phrase("HBOM Reports"),false);
document.setHeader(header);
HeaderFooter footer=new HeaderFooter(new Phrase("globematics\nS
我要让EXC_BAD_ACCESS上线了。
为什么我会得到这个?
alert = [[UIAlertView alloc]initWithTitle:@"Application Alert" message:@"all date popup" delegate:self cancelButtonTitle:nil otherButtonTitles:@"Update",nil];
[alert show]; //EXC_BAD_ACCESS on this line
有人能解释一下为什么在SMP环境下我们在内核中得到下面的消息吗?
CPU1没能上线
源内核_MSM-4.9/内核/arch/arm/内核/smp.c:
if (!cpu_online(cpu))
{
pr_crit("CPU%u: failed to come online\n", cpu);
ret = -EIO;
}
for (c <- "Hello"; i <- 0 to 1) yield (c + i).toChar
为什么上线收益率与下线收益率不同?
for (i <- 0 to 1; c <- "Hello") yield (c + i).toChar
尽管上面几行的(c + i).toChar是相同的,输出也应该是相同的,但它是不同的。