objective-c 获取当前系统时间？
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Get current system time?
提问by fuzzygoat
Whats the best way to get the current time (HH:MM:SS) using Objective-C. I would guess I should be looking at NSDate & NSDateFormatter. I had a quick glance at the docs and it looked a little more convoluted than I expected, so I thought I would check here to make sure I was on the right track.
使用 Objective-C 获取当前时间 (HH:MM:SS) 的最佳方法是什么。我想我应该看看 NSDate 和 NSDateFormatter。我快速浏览了文档，它看起来比我预期的要复杂一些，所以我想我会在这里检查以确保我在正确的轨道上。
gary
加里
回答by Ben Zotto
NSDate * now = [NSDate date];
NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];
[outputFormatter setDateFormat:@"HH:mm:ss"];
NSString *newDateString = [outputFormatter stringFromDate:now];
NSLog(@"newDateString %@", newDateString);
[outputFormatter release];
回答by Aaron
You are, in fact, on the right track. Use
事实上，你是在正确的轨道上。用
NSDate *date = [NSDate date];
to get the current date and time. Use NSDateFormatterto format it. See this linkfor a how-to on date and time formatting.
获取当前日期和时间。使用NSDateFormatter格式化。有关日期和时间格式的操作方法，请参阅此链接。
For your situation, you could do this:
对于您的情况，您可以这样做：
NSDate *date = [NSDate date];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"%H:%M:%S"];
NSString *timeString = [formatter stringFromDate:date];
回答by user3119237
NSDateFormatter *DateFormatter=[[NSDateFormatter alloc] init];
[DateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
NSLog(@"%@",[DateFormatter stringFromDate:[NSDate date]]);
