|
%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
|
|
%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
|
|
bool:
|
%t
|
|
int, int8 etc.:
|
%d
|
|
uint, uint8 etc.:
|
%d, %x if printed with %#v
|
|
float32, complex64, etc:
|
%g
|
|
string:
|
%s
|
|
chan:
|
%p
|
|
pointer:
|
%p
|
|
+
|
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); for %q, print a raw (backquoted) string if strconv.CanBackquote returns true;
|
|
' ' (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; for numbers, this moves the padding after the sign.
|
|
%t
|
the word true or false
|
|
%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"
|
|
%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. -1.234456e+78
|
|
%E
|
scientific notation, e.g. -1.234456E+78
|
|
%f
|
decimal point but no exponent, e.g. 123.456
|
|
%F
|
synonym for %f
|
|
%g
|
%e for large exponents, %f otherwise
|
|
%G
|
%E for large exponents, %F otherwise
|
|
%f
|
default width, default precision
|
|
%9f
|
width 9, default precision
|
|
%.2f
|
default width, precision 2
|
|
%9.2f
|
width 9, precision 2
|
|
%9.f
|
width 9, precision 0
|
|
%p
|
base 16 notation, with leading 0x
|
Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
