【iOS7开发快速入门】代码示例3-1

以下程序实现的功能是通过占位符，输出整形数据、浮点型数据和一个字符型数据。程序代码如下：

#import <Foundation/Foundation.h>int main(int argc, const char * argv[]) {    @autoreleasepool {        // insert code here...        NSLog(@"Hello, This is a sample 3.1 of the book 《iOS7 开发快速入门》!");        NSLog(@"%i",10);        NSLog(@"%f",10.555555);        NSLog(@"%c",'A');    }    return 0;}

运行结果如下：
2015-01-18 10:20:20.505 Sample.3.1[941:35878] Hello, This is a sample 3.1 of the book 《iOS7 开发快速入门》!
2015-01-18 10:20:20.506 Sample.3.1[941:35878] 10
2015-01-18 10:20:20.506 Sample.3.1[941:35878] 10.555555
2015-01-18 10:20:20.506 Sample.3.1[941:35878] A
Program ended with exit code: 0