scala+spark把某列string类型转换dataFrame的日期，array<double>,array<string>格式

result = resdf.withColumn("Date", to_date(col("Date"), "yyyy-MM-dd")).\
    withColumn("arrayDouble", regexp_replace(col("arrayDouble"), "\\]", "")).\
    withColumn("arrayDouble", regexp_replace(col("arrayDouble"), "\\[", "")).\
    withColumn("arrayDouble", functions.split(col("arrayDouble"), ",")).\
    withColumn("arrayDouble", col("arrayDouble").cast("array<double>")). \
    withColumn("arrayString", functions.split(col("arrayString"), ",")).\
    withColumn("arrayString", col("arrayString").cast("array<string>"))

arrayDouble