有时候我们为了调试需要将一些信息写入到文件,便于查看问题原因;
方式如下:
一、存储
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *logPath = [documentsDirectory stringByAppendingPathComponent:@"console.log"];
freopen([logPath cStringUsingEncoding:NSASCIIStringEncoding],"a+",stderr);
二、读取
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *logPath = [documentsDirectory stringByAppendingPathComponent:@"console.log"];
//写入的内容
NSString *string = [[NSString alloc]initWithContentsOfFile:logPath encoding:NSUTF8StringEncoding error:nil];