formatting - playground - Lista de formato de impresión en Go lang

golang string format variables

Question

Solo quiero saber la lista de formatos de impresión usando las funciones del paquete fmt.

Por ejemplo, como:

% v es uso para imprimir el valor. % T puede imprimir el tipo de valor.

¿Qué más?

Answer 1

La lista de "verbos" de formato está disponible en la documentación del paquete fmt :

General:

%v  the value in a default format.
    when printing structs, the plus flag (%+v) adds field names
%#v a Go-syntax representation of the value
%T  a Go-syntax representation of the type of the value
%%  a literal percent sign; consumes no value

Booleano:

%t  the word true or false

Entero:

%b  base 2
%c  the character represented by the corresponding Unicode code point
%d  base 10
%o  base 8
%q  a single-quoted character literal safely escaped with Go syntax.
%x  base 16, with lower-case letters for a-f
%X  base 16, with upper-case letters for A-F
%U  Unicode format: U+1234; same as "U+%04X"

Componente flotante y complejo:

%b  decimalless scientific notation with exponent a power of two,
    in the manner of strconv.FormatFloat with the ''b'' format,
    e.g. -123456p-78
%e  scientific notation, e.g. -1234.456e+78
%E  scientific notation, e.g. -1234.456E+78
%f  decimal point but no exponent, e.g. 123.456
%g  whichever of %e or %f produces more compact output
%G  whichever of %E or %f produces more compact output

Cadena y porción de bytes:

%s  the uninterpreted bytes of the string or slice
%q  a double-quoted string safely escaped with Go syntax
%x  base 16, lower-case, two characters per byte
%X  base 16, upper-case, two characters per byte

Puntero:

%p  base 16 notation, with leading 0x

Otras banderas:

+   always print a sign for numeric values;
    guarantee ASCII-only output for %q (%+q)
-   pad with spaces on the right rather than the left (left-justify the field)
#   alternate format: add leading 0 for octal (%#o), 0x for hex (%#x);
    0X for hex (%#X); suppress 0x for %p (%#p);
    print a raw (backquoted) string if possible for %q (%#q);
    write e.g. U+0078 ''x'' if the character is printable for %U (%#U).
'' '' (space) leave a space for elided sign in numbers (% d);
    put spaces between bytes printing strings or slices in hex (% x, % X)
0   pad with leading zeros rather than spaces

Answer 2

Puede encontrar más información, consulte esto http://golang.org/pkg/fmt/

y correr

$ godoc -http=0.0.0.0:8080

navegador abierto localhost: 8080 para obtener todo el sitio web fuera de línea (también incluye tu go src & doc)