Trilha de Go

Fundamentos de Go

Aprenda a sintaxe de Go passo a passo: variáveis, tipos, strings, condições, laços, funções, arrays, slices, maps e entrada.

12 lições

Write your first Go program and learn what package main, import and func main do.

Declare variables with var and :=, and fixed values with const.

Work with int, float64, bool, rune and string, and convert between them.

Use arithmetic, comparison and logical operators, and see how integer division works.

Join, search, split and slice text with Go strings and the strings package.

Choose what runs with if, else and switch.

Repeat code with Go's only loop, for, in its four forms.

Define functions, return more than one value and accept any number of arguments.

Store a fixed number of values and see that arrays are copied on assignment.

Work with growing lists: append, slicing, make, len and cap.

Store and look up values by key with Go maps.

Read a line from the keyboard and turn it into a number safely.