Question

我正在寻找助手。在我的情况下，我有

等文件

RN150622103444544_pr.pdf
RN150622103444544_ID_GD.pdf
RN150622103444544_CA.xml

我的问题是如何通过参考RN150622103444544删除所有文件。目前我的代码是逐个删除。以下是我的示例代码

-(void)deleteOldPdfs:(NSString *)proposal
{


    NSError *error = nil;
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];

 if([fm fileExistsAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_pr_1.pdf",proposal]]])
{
        [fm removeItemAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_pr_1.pdf",proposal]] error:&error];
}
    if([fm fileExistsAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_id_GD.pdf", proposal]]]){
        [fm removeItemAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_id_GD.pdf", proposal]] error:&error];
    }
    if([fm fileExistsAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_CA.xml", proposal]]]){
        [fm removeItemAtPath:[FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_CA.xml",proposal]] error:&error];
}
}

提前感谢

Answer 1

您可以将唯一的后缀放在数组中，然后遍历数组。

示例代码（未经测试）：

NSArray *suffixList = @[@"pr_1.pdf", @"id_GD.pdf", @"CA.xml"];

NSError *error = nil;
NSFileManager *fm = [NSFileManager defaultManager];

for (NSString *suffix in suffixList) {
    NSString *path = [FormsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_%@",proposal, suffix]];
    if([fm fileExistsAtPath:path]){
        [fm removeItemAtPath:path error:&error];
    }
}

注意：问题代码中未使用paths和docmentsDirectory，但未包含在答案中。

从部分字符串xcode中删除文件

1 个答案: