Python_Creating空列表和迭代器命名

Question

我想创建一堆空列表并通过迭代命名它们，但代码会出现错误显示＆＃34;语法错误：无法分配给运算符＆＃34;。 我的目的是创建名为5R05D，15R05D，15R20D等的列表。 感谢任何帮助！

MA = ['5','15','30','60']
For each in MA:
    each+'R05D'=[]
    each+'R10D'=[]
    each+'R20D'=[]

Answer 1

您无法创建类似的变量。首先，Python变量名称不能以数字开头。使用'5R05D'（和类似）作为键的字典会更好，并列为值：

MA = ['5','15','30','60']
d = {}
for each in MA:
    d[each+'R05D'] = []
    d[each+'R10D'] = []
    d[each+'R20D'] = []

>>> d
{'5R05D': [], '5R10D': [], '5R20D': [], '15R05D': [], '15R10D': [], '15R20D': [], '30R05D': [], '30R10D': [], '30R20D': [], '60R05D': [], '60R10D': [], '60R20D': []}