User Defined Variables中的函数变量仅初始化一次:
执行多次,输出结果是一样的。
初始化过程:
解析函数:
函数的解析过程如下:
https://mp.weixin.qq.com/s?__biz=MzIxNjc3OTk3OA==&tempkey=OTE1X29MUXFaa2VNQ1dPZDlRZWNmV3RRV1MwUUdWYzFodU1MQ0Nhbzc4MV83eWFEWTFpT0pVSFB0c1dFRDlzQnRROGFJTEJHaGVlbG5fNXdyb1JoLXNQTEhHZEpqN29temxLY3VVYjdGaTJxdlZ1bjNaVFF2Zl9aVnBpQmhSY0I3ZTRfNkVuT1ZWYThmQS1NN0lnb0NicEJXS2taUVd4SHA3NE9mSmJ6Tnd%2Bfg%3D%3D&chksm=17829c8120f51597df2d6b9e169c5632fa689f0df79b6e41b03ea206c7f0ac26852d2ede377b#rd