Besonderhede van voorbeeld: -7211847871924387540

English

Lines of a sed script are each a pattern-action pair, indicating what pattern to match and which action to perform, which can be recast as a conditional statement.

Chinese

sed脚本的每一行都是模式-动作对,指示着要匹配的模式和要执行的操作,可以将其重新组合为条件语句。