Python ExpressionParser.unary示例

示例#1

def test_unary_with_combined_signs():
    expr = '-+-+-+-+-78.92'
    parser = ExpressionParser(expr)
    assert parser.unary() == -78.92

示例#2

def test_unary_with_multiple_plus_signs():
    expr = '+++++++++++17.31230'
    parser = ExpressionParser(expr)
    assert parser.unary() == 17.3123

示例#3

def test_unary_triple_negation():
    expr = '---20'
    parser = ExpressionParser(expr)
    assert parser.unary() == -20

示例#4

def test_unary_with_plus_sign():
    expr = '+09.23'
    parser = ExpressionParser(expr)
    assert parser.unary() == 9.23

示例#5

def test_unary_double_negation():
    expr = '--19.60'
    parser = ExpressionParser(expr)
    assert parser.unary() == 19.60