Python:在列表中查找元素

if element in my_list:
    print("Element is in the list")
else:
    print("Element is not in the list")

try:
    index = my_list.index(element)
    print("Element is at index", index)
except ValueError:
    print("Element is not in the list")

for index, element in enumerate(my_list):
    if some_condition(element):
        print("Found element at index", index)
        break
else:
    print("No element found")