python字典赋值

Python031

python字典赋值,第1张

简单举个例子：

dic = {'key':1,'key2':'str'}

赋新值例子：

dic['key3'] = 0

dic['key4'] = 'sss'

替换现在值：

dic['key'] = 2

yourDict={'1000':{'1':['a','b','c','d'],'2':['e','b','c','a']},'2000':{'1':['c','d','c','d'],'2':['a','a','c','d']}} out=open('out.xls','w') for key in yourDict: out.write(key) for key2 in yourDict[key]: out.write('\t') out.write(key2+'\t') out.write('\t'.join(yourDict[key][key2] )) out.write('\n') 最后xls转存为csv即可

遍历其中一个字典的Key，然后替换就行了：

代码如下：

A = {'a': [1, 2], 'b': [3, 4]}

B = {'a': 'x', 'b': 'y'}

print('字典A的值： ', A)

print('字典B的值： ', B)

for key in A.keys():

  B[key] = A[key]

print('字典B就变成了A： ', B)

运行结果如下：