如何在 Python 中的列表项中插入字符串

Question

我有清单：

['Happy Family','2122540624','213 E Broadway # A, New York, NY 10002, United States']

我想像这样在第一项中添加一个“,”：

 ['Happy Family,','2122540624','213 E Broadway # A, New York, NY 10002, United States']

有朋友知道怎么做吗？

Answer 1

您只需按索引获取项目并添加一个逗号，如下所示：

a = ['Happy Family','2122540624','213 E Broadway # A, New York, NY 10002, United States']
a[0] = f'{a[0]},' # f-string above python 3.6 otherwise a[0] = a[0] + ','
print(a) # Outputs ['Happy Family,', '2122540624', '213 E Broadway # A, New York, NY 10002, United States']

Answer 2

MyList = ['Happy Family','2122540624','213 E Broadway # A, New York, NY 10002, United States']
MyList[0] = MyList[0] +','

结果：

['Happy Family,', '2122540624', '213 E Broadway # A, New York, NY 10002, United States']

你可以试试