IOS日志记录

-(void)CWriteFile:(NSString*)logStr  isLogTime:(BOOL)_isLogTime
{
    
    /获取路径
    NSString *sandboxPath = NSHomeDirectory();
    NSString *documentPath = [sandboxPath  stringByAppendingPathComponent:@"Documents"];//将Documents添加到sandbox路径上//
    NSString *FileName=[documentPath stringByAppendingPathComponent:@"log.txt"];//fileName就是保存文件的文件名
    获取当前时间
    if(_isLogTime)
    {
        NSDate *  nowdate=[NSDate date];
        NSDateFormatter  *dateformatter=[[NSDateFormatter alloc] init];
        [dateformatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
        NSString *  locationString=[dateformatter stringFromDate:nowdate];
        logStr = [NSString stringWithFormat:@"%@:%@",locationString,logStr];
        [dateformatter release];
    }
    写入并关闭
    FILE    *fp = NULL;
    fp = fopen(FileName.cString, "a+" );
    if( fp == NULL )
    {
        return;
    }
    fprintf( fp, logStr.cString);
    fclose( fp);
}