西红酱
西红酱怎么做好吃呢??
ty_淡淡587 2021-08-01 08:57 制作流程1黄豆清水泡发,入开水锅焯熟捞出。黄豆芽入锅焯熟。五花肉、鲜香菇洗净切成半厘米见方的小丁。心里美萝卜、白萝卜、黄瓜去皮切丝。芹菜、香椿洗净切小段。2炒锅上火倒油烧[详细]
2023-02-05 08:52 分类:问答Operate on pairs of rows of a data frame
I\'ve got a data frame in R, and I\'d like to perform a calculation on all pairs of rows. Is there a simpler way to do this than using a nested for loop?[详细]
2022-12-26 03:43 分类:问答