在Python中,合并两个列表有几种常见的方法:
1. 使用`+`运算符:
list1 = [1, 2, 3]
list2 = [4, 5, 6]
merged_list = list1 + list2
print(merged_list) 输出:[1, 2, 3, 4, 5, 6]
2. 使用`extend()`方法:
list1 = [1, 2, 3]
list2 = [4, 5, 6]
list1.extend(list2)
print(list1) 输出:[1, 2, 3, 4, 5, 6]
3. 使用`*`运算符和`zip()`函数:
list1 = [1, 2, 3]
list2 = [4, 5, 6]
merged_list = [item for pair in zip(list1, list2) for item in pair]
print(merged_list) 输出:[1, 4, 2, 5, 3, 6]
4. 使用列表解析:
list1 = [1, 2, 3]
list2 = [4, 5, 6]
merged_list = [x for x in list1] + [x for x in list2]
print(merged_list) 输出:[1, 2, 3, 4, 5, 6]
5. 使用`append()`方法和`for`循环:
list1 = [1, 2, 3]
list2 = [4, 5, 6]
for item in list2:
list1.append(item)
print(list1) 输出:[1, 2, 3, 4, 5, 6]