Golang–fmt Formatting parameters

This is a creation in Article, where the information may have evolved or changed.

Original

Basic

%vthe value in a default Formatwhen printing structs, the plus flag (%+v) adds field names% #va go-syntax representation of The Value%ta go-syntax representation of the type of the value%%a literal percent sign; Consumes no value

The default format for%V is:

BOOL:%tint, int8 etc.:%duint, Uint8 etc.:%d,% #x if printed with% #vfloat32, complex , etc:%gstring:%schan:%ppointer:%p

Boolean:

%tthe Word True or false

Integer:

%bbase 2%cthe character represented by the corresponding Unicode code point%dbase 10%obase 8%qa single-quoted character Li Teral safely escaped with Go Syntax.%xbase +, with lower-case letters for A-f%xbase, with upper-case letters for a-f%u Unicode format:u+1234; Same as "u+%04x"

Floating-point and complex constituents:

%bdecimalless scientific notation with exponent a power of two,in the manner of StrConv. Formatfloat with the ' B ' format,e.g. -123456p-78%escientific notation, e.g. -1.234456e+78%escientific notation, e.g.-1.2  34456e+78%fdecimal Point and no exponent, e.g. 123.456%fsynonym for%f%g%e for large exponents,%f otherwise%g%e for large Exponents,%F otherwise

String and slice of bytes (treated equivalently with these verbs):

%sthe uninterpreted bytes of the string or Slice%qa double-quoted string safely escaped with Go Syntax%xbase, Lower-cas E, characters per Byte%xbase, upper-case, characters per byte

Pointer:

%pbase notation, with leading 0x