Learn about the differences in the output of isBlank(), isNull(), isEmpty() functions when applied in DRE and Creator.
blank和empty的区别 总体来说,这周题目比较难。以后还是每周都来总结下周赛。1. 957. Prison Cells After N Days题意类似于细胞生命的游戏,每天细胞会根据前一天的状态进行演变,演变规则:Each day, whether the cell is occupied or vacant changes according to the following rules: If a cell has ...