
CODE: [Copy to clipboard]执行效果echo this is a test string
CODE: [Copy to clipboard]b.batC:\documents and setting\administrator>a
C:\documents and setting\administrator>echo this is a test string
this is a test string
CODE: [Copy to clipboard]执行效果@echo this is a test string
CODE: [Copy to clipboard]执行效果不一样,并不仅仅是b中隐藏当前命令回显。a在当前提示符中没有输出,而是结束后在另外的提示符下才有输出,而b则直接在当前提示符下产生输出。C:\documents and setting\administrator>b
this is a test string
C:\documents and setting\administrator>
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