例如,假设我的变量列“xyz”包含如下数据:
{
"post_new_visits": "Repeat",
"post_new1_week": "Thursday",
"post_new2_appt": "Weekday",
"post_new3_site": "12:50AM",
"post_new4_channel": "5.0",
"pre_new2_appt": "Weekday",
"pre_new3_site": "12:50AM",
"pre_new4_channel": "5.0"
}
我想要一个来自上面的变量列的新变量列,它应该只有“post*”键值,如下所示,输出应该是这样的。
{
"post_new_visits": "Repeat",
"post_new1_week": "Thursday",
"post_new2_appt": "Weekday",
"post_new3_site": "12:50AM",
"post_new4_channel": "5.0",
}
有什么办法可以实现吗?