Python 列表表达式和字典表达式

test_json={"a":1,"b":2,"c":3}
#列表表达式
list=[value for key,value in test_json.items()]
#字典表达式
json={value:key for key,value in test_json.items()}
print "list:",list
print "json",json

运行结果

运行结果.png