A small question about labeling, what is the impact of labeling regulations

Hehe, this is a C label, the brother upstairs didn't talk nonsense!

It's true that when the value of the message you pass in is empty, it will execute the content inside, for example:

sorry,it's empty

If the message is empty, the middle paragraph will be displayed.

There are many other uses for the C tag, such as:

You can look it up online

This is the conditional label in the JSTL standard tag library, $ is an el expression, the purpose here is to determine whether the message object is empty, the result is true or false, if true, then executed.

tag contains **, otherwise it is not executed, test is a fixed way here, equivalent to keywords such as if, else, etc., to use this tag, first your project must import the standard tag library (or, then on the jsp page you need to use the taglib directive to import the core tag library, like this: <

prefix="c" %>

Then you can use the value that is automatically taken from the request in the page. "It is not necessarily the value obtained from the request, but it may also be the value obtained from the scope of session, application, etc., the key is to see which scope the object was stored in before.

When the contents of the test are empty.

This is the jstl tag, and the usage is what Phabro said upstairs.

This means that the value of the empty message property is taken from the request.

Pro: Glad to answer for you, questions and label questions are different types of questions. A problem refers to a thing that needs to be solved and is an open-ended sentence.

A good question should be clear, simple, and specific. A label question is a question that is selected within a limited range of states. It offers several optional answers to choose from.

Differences: Question: How do I transfer files between a new phone and an old phone?

Label question: What method do you use to transfer files from your old phone to your new phone? a.

Transmission via data cable bBluetooth connection transmission synchronous transmission dThe problem of using the cloud sync function needs to be solved by yourself, and the answer is open.

The label question has given an optional answer, and it is required to choose the answer that best matches. In general: the questions are open-ended and seek answers.

Labeling questions are restrictive and offer a range of labels to choose from. Both types of questions are important, they help us to explore, to discover; Labeling questions are more focused on assessment and testing. I hope the above explanation will help you understand the difference between a question and a label problem.

If you still have any questions, feel free to ask me.

As early as 1700, the first labels for hosiery identification on medicines and cloth were printed in Europe. So, nowadays labels are tools to mark your product categories and categories or content, such as the keyword terms you identify for your goals, and for you and others to find and locate your goals. Most of the labels in the printing industry are printed materials that are used to identify the relevant instructions of their own products, and most of them are glued on the back.

But there are also some that are printed without glue, which can also be called labels. Adhesive labels are commonly known as "self-adhesive labels". The labeling of the instrument after calibration, which is a label uniformly prescribed by the state (or its own provincial regulations), can clearly explain the details of the instrument after calibration.

There are also the names of many labels that have been bred out of the current words, such as the electronic label of the product, as shown in the figure below

There are also a lot of character labels, clothing labels, and so on. For example, the labels in the library are used to classify books. Each tag has a different name and a different purpose.

1.Physical labels.

A physical label is a brief label used to indicate the name, weight, volume, purpose and other information of the item. There are traditional printed labels and modern barcode printed labels.

Electrical appliances: mobile phone internal labels, various electrical labels, laptop labels, mechanical and electrical product labels.

Commodities: **Labels, product description labels, shelf labels, barcode labels, pharmaceutical labels.

Management: book tags, vehicle inspection tags, security check tags, property tags.

Office: document labels, file preservation labels, various items and stationery labels.

Production: Raw material labeling, processed product labeling, finished product labeling, inventory management labeling.

Chemical: Marking of paint materials, packaging labeling of gasoline engine oil products and labeling of various special solvent products.

Others: anti-counterfeiting labels [2], encryption labels, anti-theft labels.

Jewelry: jewelry tag labels, tag tags that are not easy to stick to the product.

Clothing: clothing tags, wash tags.

Airport: boarding pass, baggage tag.

Tickets: train tickets, long-distance bus tickets.

Others: parking tickets, highway toll tickets.

2.Network tags.

Tag is a way of organizing Internet content, it is a highly relevant keyword, it helps people easily describe and classify content for easy retrieval and sharing, tag has become an important element of the web.

If you've visited Flickr (**), Technorati (blog), Yummy Bookmarks, etc., you'll find that you use tags to display content, and users use tags to describe content and retrieve relevant content.

The "open taxonomy" used by the encyclopedia is also a manifestation of labels.

3.Electronic tags.

Electronic tags are also known as radio frequency tags, transponders, and data carriers; Readers are also known as readout devices, scanners, read heads, communicators, and readers (depending on whether the transponder can wirelessly rewrite data). The spatial (non-connector-fiber-neutral balance) coupling of radio frequency signals is realized through coupling elements between the electronic tag and the reading stove; In the coupling channel, according to the timing relationship, the energy transfer and data exchange are realized.

Electronic tags are a tool to improve the efficiency and accuracy of identification, and this technology will completely replace barcodes. RFID RFID is a non-contact automatic identification technology, which automatically identifies the target object and obtains relevant data through RF signals, and the identification work does not require manual intervention, and can work in various harsh environments. RFID technology can identify high-speed moving objects and can recognize multiple tags at the same time, which is fast and convenient to operate.

RFID electronic tags are a breakthrough technology: "First, it can identify a single very specific object, rather than only one type of object like a barcode; Second, it uses radio frequency, which can read data through external materials, while barcodes must be read by lasers. Third, multiple objects can be read at the same time, while barcodes can only be read one by one. In addition, the amount of information stored is very large. ”

Summary. Hello, the main impacts of the labeling regulations are:1

will increase management costs. Strengthen the management of the whole process of labeling, and increase the management links of label review, production, storage, receipt and pasting in the internal management process and system. 2.

Yes, it will increase the cost of human resources. Every year, WTO member countries issue nearly 40 food labeling notices, and enterprises need to be equipped with professionals to pay attention to the new changes in the labeling requirements of exporting countries. 3.

Yes, the cost of testing will be increased. <>

Hello, the impact of the label regulations is mainly positive: 1will increase management costs.

Strengthen the management of the whole process of labeling, and increase the management links of label review, production, storage, receipt and sail pasting in the internal management process and system. 2.Yes, it will increase the cost of human resources.

Every year, WTO member countries issue nearly 40 notices on food labeling, and enterprises need to be equipped with professionals to pay attention to the new changes in the labeling requirements of exporting countries. 3.Yes, the cost of testing will be increased.

The main labeling regulations are:1In order to further standardize product identification, guide enterprises to correctly mark product identification, clearly indicate product quality information, and protect the legitimate rights and interests of enterprises, users and consumers, these regulations are formulated in accordance with the provisions of the "Product Quality Law of the People's Republic of China" and other laws and regulations.

2.The term "product identification" in these provisions refers to the general term used to identify the product and its quality, quantity, characteristics, characteristics and various expressions made by the method of use. 3.

The labeling of products produced and sold within the territory of the People's Republic of China shall comply with these provisions. 4.In addition to the instructions for use of the product, the product identification shall be marked on the product or the packaging of the product.

Cases of labeling provisions.

In the case of a cosmetics company, it was stated on the outer packaging label of its Pearl Anti-Wrinkle Repair Roll-On Eye Cream that the product could "improve the condition of eye bags and other undesirable eye muscles", but the company could not provide a legal and effective scientific basis for this content. The local market supervision department determined that the labeling violated Article 37 of the "Regulations", and imposed confiscation of illegal gains, confiscation of illegal property, and a fine of 10,000 yuan on the company.

A label is a brief label used to indicate the name, weight, volume, purpose and other information of an item. The scope of use includes shipping label source tong, postal parcel, letter packaging, transportation goods labeling, envelope address label, ** label, book label, wine label, food label, etc.; It is uniformly stipulated by the state, and the label can clearly explain the details of the article after it has been inspected.

As early as 1700, the first labels were printed in Europe to be used on cracked medicines and cloth as commodity identification. So, today's labels are tools that are used to mark your product goals and categories or content, such as the keyword terms you identify for your goals, so that you and others can find and target your goals. The so-called labels in the printing industry, the big cha blind part is used to identify the relevant instructions of their own products, and most of them are glued on the back.

But there are also some that are printed without glue, which can also be called labels. Adhesive labels are commonly known as "self-adhesive labels".

Explanation of the mega balance of the label.

label;tag]

A paper label indicating the name, **, and specifications of the article Detailed explanation A piece of paper affixed to or tied to the article and indicating the name, purpose, **, etc. Qing Zhou Lianggong's "Book Shadow" Volume 2: "Yizhou's old collection of "Han Shu Demolition and Guess Good", obtained by Wu Zhonglu Dazai's family, Song Ban Song Zhen, calligraphy and painting are heavy, and it is Zhao Wenmin's old thing.

The frontispiece draws a portrait of Wen Min, and the label is written in Wen Min's hand. Ai Qing's Selected Poems Self-Preface: How can I say that I never sing the praises of the proletariat Is it only the proletariat that can only be regarded as the proletariat if it is labeled with the word 'proletariat'?

Word decomposition Interpretation of the lead of the subject The end of the tree is extended to be superficial, non-fundamental: specimen. Treat the symptoms but not the root cause.

Symbol: Trademark. Signpost.

Mark. Sign. Ruler.

Slogan. Indicated in words or something else: indicate.

Title. List price. flaunting (originally to reveal, to show; Later, it was extended to preach and boast).

Explanation of Signature Sign (Sign Sign Sign) āWrite your name or draw a symbol in person: Signature. Sign.

Sign in. Issued. Sign.

Sign. Signature. Signed.

Write the opinion briefly: endorsement. Signed.

Visa. Thin sticks or flakes made of bamboo and wood: toothpicks.

Scraps of paper or other objects used as symbols in books.