『第 20 楼』:
使用 LLM 解释/回答一下
Re hxmupdata:
关于set的用法：set如果不加/a参数，就表示直接赋值了，就是将=号后面的值直接赋值给=号前面的变量，如果要用set来作简单的算术运算，必须加上/a参数，因为/a参数指定set为作算术运算。比如 set a=1+7 ，那么变量a的值就是"1+7"，加上/a参数就可以计算=号后面的算术表达式了，比如 set /a a=1+7 ，那么变量a的值就是8了，如果要引用这个变量，就要用%号将变量a包含起来，比如 echo %a%，这样就可以显示变量a的值了。
另外，变量中可以有"="号，比如 set str=a=b=c ，那么 echo %str% 的结果就是 "a=b=c" 了。
Re hxmupdata:
Regarding the usage of set: If set is used without the /a parameter, it means direct assignment, that is, the value after the = sign is directly assigned to the variable before the = sign. If you want to use set for simple arithmetic operations, you must add the /a parameter because the /a parameter specifies that set is for arithmetic operations. For example, set a=1+7, then the value of variable a is "1+7". Adding the /a parameter can calculate the arithmetic expression after the = sign. For example, set /a a=1+7, then the value of variable a is 8. If you want to reference this variable, you need to enclose the variable a with %, for example, echo %a%, so that the value of variable a can be displayed.
In addition, there can be "=" signs in variables. For example, set str=a=b=c, then the result of echo %str% is "a=b=c".
|
