45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
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---
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title: if else Statements
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localeTitle: si más declaraciones
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---
## Introducción
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La sentencia `if` ejecuta una sentencia si una condición especificada es **verdadera** . Si la condición es **falsa** , se puede ejecutar `else` instrucción utilizando la instrucción `else` .
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**Nota:** la sentencia `else` es opcional.
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```Go
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x := 7
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if x%2 == 0 {
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// This statement is executed if x is even
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} else {
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// This statement is executed if x is odd
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}
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```
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Se pueden anidar varias declaraciones `if...else` para crear una cláusula `else if` .
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```go
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x := 7
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if x == 2 {
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// this statement is executed if x is 2
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} else if x == 4 {
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// this statement is executed if x is 4
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} else if x == 7 {
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// this statement is executed if x is 7
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} else {
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// this statement is executed if none of the aboves is true
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}
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```
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En Go puede preceder una condición `if` con una sentencia. La definición de la variable que contiene es entonces válida para el bloque `if` completo.
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```go
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if x := 3; x == 2 {
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// this statement is executed if x is 2
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} else if x == 3 {
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// this statement is executed if x is 3
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} else {
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// this statement is executed if none of the aboves is true
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}
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```
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