直接拖進工程的plist檔案可能沒有加入到Bundle Resource中，需要手動新增一下

swift 把資料寫進plist檔案中，有時候需要把後臺返回的資料儲存的時候，可以這麼操作

let array = NSArray(objects: "hangge.com","baidu.com","google.com","163.com","qq.com")
let filePath:String = NSHomeDirectory() + "/Documents/webs.plist"
array.write(toFile: filePath, atomically: true)

        let arr = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
        debugPrint(arr[0])
 

oc方法

NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);  
NSLog(@"%@", paths[0]);  

+(NSArray *)readPlistKey:(NSString *)string{
    NSString *path=[[NSBundle mainBundle]pathForResource:string ofType:@"plist"];
    NSArray *arr = [NSArray arrayWithContentsOfFile:path];
    return arr;
}
 

let arr = NSArray(contentsOfFile: NSHomeDirectory() + "/Documents/webs.plist")