if

variableName = True

if variableName:
    print('value')
実行結果
value

else

variableName = False

if variableName:
    print('value1')
else:
    print('value2')
実行結果
value2

else if

variableName = 2

if variableName == 1:
    print('value1')
elif variableName == 2: 
    print('value2')
else:
    print('value3')
実行結果
value2

複数

def function_name(argument):
    if argument in (1, 2):
        print('value')

function_name(1)
function_name(2)
function_name(3)
実行結果
value
value

match

param = "v2"

match param:
    case "v1":
        print("1")
    case "v2":
        print("2")
    _:
        print("else")
実行結果
2

param = ["value1", "value2", "value3"]

match param:
    case v1:
        print("v1")
    case v1, v2:
        print("v1,v2")
    case v1, v2, v3:
        print("v1,v2,v3")
    case v1, v2, v3, v4:
        print("v1, v2, v3, v4")
実行結果
v1,v2,v3