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&和&&都是逻辑运算符号,&&又叫短路运算符区别如下 1 int i=1; 2 if(i==2 & i++==2){} //i==2为false,但i++==2还会继续比较,所以i++被执行 3 System.out.println(i);//i 打印出来为2 4 int j=1; 5 if(j== 阅读全文
posted @ 2019-09-05 18:49
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posted @ 2019-09-05 17:32
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posted @ 2019-09-05 15:50
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posted @ 2019-09-05 15:48
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posted @ 2019-09-05 15:33
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posted @ 2019-09-05 15:23
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posted @ 2019-09-05 14:32
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posted @ 2019-09-05 14:25
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posted @ 2019-09-05 14:08
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