Question

我正在尝试在Xcode中运行以下内容：

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {

//        NSLog(@"Hello, my name is Travis");
//        NSString *firstName = @"Variable";
//        NSLog(@"Hello, my name is %@", firstName);
//        NSString *lastName = @"Last Name";
//        NSLog((@"First name: %@, Last name: %@", firstName, lastName));
//        NSNumber *age = @26;
//        NSLog(@"%@ age is %@", firstName, age);
//        NSArray *items = @[@"item1", @"item2", @"item3"];
//        NSLog(@"%@",items[1]);
//        NSLog(@"%@", [items description]);
//        NSString *result = [items description];
//        NSLog(result);
        NSString *city = @"San Francisco";
        NSUInteger cityLength = [city length];
        NSLog(@"%lu", cityLength);
//        NSMutableArray *mystr = [NSMutableArray arrayWithObjects:@"hello",@"world", nil];
//        NSLog(@"%@", mystr[0]);
//        NSString *me = @"FROM ME!";
//        [mystr addObject: me];
//        NSLog(@"%@", mystr[2]);
//        NSDictionary *appRatings = @{@"item1": @4, @"item2": @3};
//        NSLog(@"%@", [appRatings allKeys]);
//        NSLog(@"%@", [appRatings objectForKey:@"item1"]);
//        NSLog(@"%@", [appRatings allValues]);
//        NSLog(@"%@", [appRatings valueForKey:@4]);

    }

}

我只是想尝试运行未注释的代码。看似简单，应该只计算我的字符串变量中的字符数。当我运行它时，构建成功但没有任何东西放入控制台。唯一出现的是：(lldb)

Answer 1

lldb表示代码在断点处暂停，正在等待lldb命令。禁用断点或查找并删除断点，然后重试。

Xcode控制台不显示NSLog输出，仅显示（lldb）

1 个答案: