NSString* doucmentpath=[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES)firstObject];
NSString* imagestr=[NSStringstringWithFormat:@"%@/lead1.jpg",doucmentpath];
NSLog(@"沙盒路径%@",imagestr);
UIImage*imgM1= [UIImageimageWithContentsOfFile:imagestr];
[backimageview1setImage:imgM1];
[self.viewaddSubview:backimageview1];