字符串写入文件

#import <Foundation/Foundation.h>
//写入文件
int main(int argc, const char * argv[])
{

    @autoreleasepool {
        NSString * str = @"你是一仅仅小狗 ";
        //创建路径
        NSString * path =@"/Users/ms/Desktop/hello/my.txt";
        NSError * error;
        //第一个參数给出路径
        //atomically:YES
        
        BOOL isWriteSucess = [str writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:&error];
        
        if(isWriteSucess)
        {
            NSLog(@"写入成功");
        }
        else
        {
            NSLog(@"写入失败");
        }
        //NSLog(@"%@",error);
    }
    
    return 0;
}