Language symbols have two aspects: form and meaning. Form is sound, so language symbols are the combination of sound and meaning. The primary form of language symbols is human voice, that is, the basic form of language symbols is voice, not words.
What are the four different forms of language description? 100 integral.
The most common forms of dialogue description are as follows.
1, "narrative+language" type. For example:
Dad said angrily, "It won't happen again!"
2, "language+narrative" type. For example:
"It won't happen again!" Dad said angrily.
3, "language+narrative+language" type. For example:
"Great!" Dad said happily, "Son, you are really my pride."
4. "Language" style. For example:
"Son, you are so proud of me!"
What are the types and ways of language communication?
1, static and static nonverbal communication includes appearance modification, dressing and manners.
F 2。 Dynamic nonverbal communication, also known as "body language", includes:
(1) Kinesthetic systems such as gestures, postures and facial expressions. Gestures, postures, movements, intensity and frequency all convey information between doctors and patients. According to research, the total effect of information =7% of words +38% of tones +55% of facial expressions.
(2) Hyperlinguistic part-of-speech system, such as sound quality, tone, speech speed and fluency, speech amplitude, tone pause, etc. These contents often reflect the emotional state of patients, such as tension, anxiety, depression, excitement and so on.
(3) Space-time systems such as time, space, orientation and distance. The length, direction and distance of doctor-patient dialogue have an influence on the atmosphere of doctor-patient dialogue.
(4) Visual communication system, such as eye contact. Eye contact is an important body language. The frequency and concentration time of eye contact between doctors and patients often show important information. For example, children with depression, emotional sadness or autism have different eye contact from ordinary people.
What is the significance of poetry itself today?
Frost said: Poetry is the missing part in translation. So many people say that poetry is untranslatable. I want to understand the words of the American poet laureate from another angle. I think poetry, as an art of language, can only be conveyed by literal translators, and the subtlety of those languages as poetry in the original text is lost. Just as Tang poetry and Song poetry were interpreted as vernacular, they lost the charm of poetry.
What is the format of SQL language?
Does it mean SQL syntax? It's complicated. The following is the official reference manual of CSDN:
DB2 provides SQL (Structured Query Language) for relational databases, which is a very colloquial grammar and easy to learn and understand. Almost every database system needs this language to express relational expressions, including data definition (DDL) and data processing (DML). SQL was originally spelled SEQUEL, and the prototype of this language was completed under the name of "System R" in IBM San Jose Lab. After many usability and efficiency tests by IBM and others, the results are quite satisfactory. We decided to develop IBM products based on the technology of System R, and American National Standards Institute (ANSI) and International Organization for Standardization (ISO) followed a standard relational data language definition based on IBM SQL in 1987.
I. Data Definition DDL (Data Definition Language)
Data definition language refers to the language that defines the format and form of data. It is the first thing that every database must face when it is established. The table relationship of all data, the primary key of fields in the table, and the cross-reference relationship between tables should be planned at the beginning.
1. Form creation:
Create table table_name (
Column 1 data type [non-empty] [non-empty primary key],
Column 2 data type [not empty],
...)
Description:
Data Type-is the format of the data, as shown in the table.
Nut null- Can data be allowed to be empty (there is no data to fill in)?
Primary key-is the primary key of the table.
Step 2 change the form
Change table name
Add column column_name data type.
Description: Adds a field (does not delete the syntax of the field).
Change table name
Add primary key (column name)
Description: Change the definition of the table and set a field as the primary key.
Change table name
Delete primary key (column name)
Description: Deletes the definition of primary key.
Step 3 build an index
Create index names for table names (column names)
Description: Index the fields in the table to improve the query speed.
Step 4 delete
Delete table name
Delete index name
Second, the data type of data form
*** allint
16-bit integer.
Integer room
32-bit integer.
decimal system
The exact value of p and a decimal integer with the size of s, where the exact value of p refers to all values with several digits and s refers to decimals.
How many digits are there after the dot? If not specified, the system will set p = 5；; s=0 .
flotage
32-bit real number.
double；twofold
64-bit real number.
character
A string of length n, where n cannot exceed 254.
Variable character
A string with a variable length and a maximum length of n, where n cannot exceed 4000.
Graph (n)
Same as char(n), but its unit is two characters and double bytes, and n cannot exceed 127. This form is for
In order to support two-character fonts, such as Chinese characters.
Variable graph
A two-character string with variable length, with a maximum length of n, where n cannot exceed 2000.
date
Contains the year, month and day.
time
It includes hours, minutes and seconds.
The seventh note of the diatonic scale. ......
What kind of language is python
Python is an object-oriented, explanatory and dynamic computer programming language.
Explanatory: the program does not need to be compiled into binary code, but compiles statements one by one during execution.
Dynamic type: During the execution of a program, the type of a variable can be changed.
Often dubbed glue language, it can easily connect various modules made by other languages (especially C/C++).
What is the definition format of function in C language, and what is the syntax format of function prototype declaration?
Function prototype: return the type function name (parameter type list);
For example, int max(int*, int); Definition of function: replace the last semicolon of the function prototype with the function body.
For example:
int max(int *data，int count)
{
Function body code
}