摘要：批量注释： :<<COMMENT code COMMENT 循环： #!/bin/bash for varible1 in {1..5} #for varible1 in 1 2 3 4 5 do echo "Hello, Welcome $varible1 times “ done Linux 核 阅读全文

摘要：--删除表中重复数据 delete from vitae a where (a.peopleId,a.seq) in (select peopleId,seq from vitae group by peopleId,seq having count(*) > 1) and rowid not in (select min(rowid) from vitae group by peop... 阅读全文

摘要：jupyter notebook 本地开启jupyter，画图需打开限制：jupyter notebook --NotebookApp.iopub_data_rate_limit=2147483647 不显示警告：import warnings warnings.filterwarnings("ig 阅读全文