Hope to adopt
Detail point
brief introduction
Characters-The earliest history can be traced back to 1 century, and the earliest is the linking of Latin et (meaning and). The earliest &; Much like the combination of E and T, with the development of printing technology, this symbol gradually formed its own style, out of the original shadow. In this character, you can still see the shadow of e, but t has disappeared.
In the picture is&; The evolution of characters, in which 1 is more like its original hyphenation, 2 and 3 developed in the 4th century, and 4 to 6 developed in the 9th century. 18th century,&; It has evolved into a very decorative calligraphy. Modernity & Basic Reservation & In the ninth century. Italic &; It is a late linking form of E and T, and it is also found in modern fonts. They are the product of curve fonts in the Renaissance, and they look more beautiful. In overloading & writing in circles, all&; Both of them are two strokes: starting from the top, turning counterclockwise into a big arc, moving upward, and closing the pen into a clockwise arc; Start from the same position, write a stroke directly, and add a decorative ending (as shown in the picture).
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In addition, in the18th century, people often &; Followed by a lowercase c, and so on (and so on, all in Latin, and so on. Wait. ). Widely used in European languages).
1837 added the word "and" to the dictionary for the first time, which is the linking pronunciation of "and itself and". & included in any Roman font and often used in modern languages.
At present, it is widely used, in text messages and tweets,&; Used to replace the word "And", which means "and" in programming languages (such as MySQL, C and C++, XML, SGML and Basic).
For example, Zhang San in Song Dynasty &; Li Si means that this song was sung by Zhang San and Li Si.
This symbol is also fully used in mathematical logic.
1 is the default symbol used in HTML or SGML documents to indicate the existence of characters (special characters).
In a spreadsheet program, an operator used to insert text into a formula that describes the relationship between cells.
3 stands for and in English, and can also be pronounced as and.
The pronunciation of this word is "z'da".
5&It also means "combination". Such as "A &；; Company B is a merger of Company A and Company B. ..
In some computer languages, such as java, it means bitwise AND operation.
English spelling: and symbols
8 address fetch symbols in high-level languages, such as "int a = 0；; int * p； * p =&A; " Point the address of the variable a to the pointer p.
Two words in 9C language &; & Representation and Operation
For example, while(" a = = 9 &；; & ampB==5 ") means that when a=9 and b=5, the condition holds.
In 10 Matlab,&; Representation and operation (corresponding, | representation or operation), but in a higher version of Matlab (such as Matlab R2008b), it is also recognized that &; & how to write it.
In the above sense, items 3 and 5 are the most commonly used.
1 1 in the vfp database. Is a macro replacement function that replaces &; And variable names.
For example, a 1= "Hello"
a2=a 1
& aortic second sound
The result on the screen is hello.
On the T-shirt &; ampere
12 in Pascal,&; Is the prefix of octal integer constants, such as&; 7 means 7,&; 17 means 15. 177 means 127.
13。 It has also been widely introduced into artistic creation and design.
14 bat&; After that, regardless of whether the command is successful or not, multiple commands will be executed in turn.
15 When using command buttons in Visual Basic, (&; Letter) means to set letters as shortcut keys.
For example, enter OK in the Title attribute of the command button. K) "means that k is the shortcut key for the OK event.
16 plays the role of identification. Declaring method referenced in C++: type identifier &; Reference name = target variable name. This is not an address operation, but a recognition function.