echo controls the output. if you con't want to see any commands that the batch file runs you call "echo off". if you don't want to see the ... ... <看更多>

@ 效果同 echo off ，只对当前行有效，于是用来取消打印 echo off 所在行。 对于 on|off 之外的argument，echo 将原样打印它。而linux shell 会去掉引号。 echo "hello ... ... <看更多>

Seeing echo off in a prompt will only tell you that a batch script is running, and that commands following the echo off will not be ... ... <看更多>

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