Could you tell me why 2 countb counta==1?
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JSP operation principle & lt;/title> <br/></head> <br/><body> <br/><%! CountA//JSP declaration: declare an integer, and initialized to 0 <br/>Int countA=1; %> <br/><% <br/>//Java scriptlets script, declare an integer countB and should be initialized to 0 <br/>Int countB=0; <br/>%> <br/><%="countA=" + + + countA % & gt; <Br/& gt; <br/><%="countB=" + + + countB % & gt; <Br/& gt; <br/></body> <br/></html> <br/><p class="article - content rp"> CodePudding user response: </p>This is not very normal countA default is 1 countB default is 0 + + a + is run before assignment is ascribed value after shipment, you should is to want to know the difference between a + + a and +, demo write wrong,<p class="article - content rp"> CodePudding user response: </p><fieldset> <legend> references for 1/f, the emperor god reply: <legend> <blockquote> this is not very normal countA default is 1 countB default is 0 + + a + is run before assignment is ascribed value after shipment, you should is to want to know the difference between a + + a and +, demo are written wrong, </blockquote> <fieldset> <br/>No, I made a mistake, the original counta is equal to zero, I changed the forget to come back, that is to say, counta is equal to 1 cases, the final result is equal to 3<p class="article - content rp"> CodePudding user response: </p><fieldset> <legend> references for 1/f, the emperor god reply: <legend> <blockquote> this is not very normal countA default is 1 countB default is 0 + + a + is run before assignment is ascribed value after shipment, you should is to want to know the difference between a + + a and +, demo are written wrong, </blockquote> <fieldset> <br/>And the operator of a and b is not the same<p class="article - content rp"> CodePudding user response: </p><fieldset> <legend> reference any ses reply: 3/f <legend> <blockquote> <fieldset> <legend> Quote: refer to 1st floor eutopean royal god reply: <legend> <blockquote> this is not very normal countA default is 1 countB default is 0 + + a + is run before assignment is ascribed value after shipment, you should is to want to know the difference between a + + a and +, demo are written wrong, </blockquote> <fieldset> <br/>And the operator of a and b is not the same </blockquote> <fieldset> <br/><br/>Counta and countb initialization is 0 1 is a Java is a javascript and then after + + output does not agree? Can I say can't write wrong? You must be the code, you can run the code and your screenshot to see as a result, </div>
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