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2022-08-05 16:51:03 查看(46) 回复(0)
package ch01; public class Test10 { public static void main(String[] args) { int x=15; //逻辑或 // if(x%3==0 || x%5==0){ // } String a=""; //逻辑与 //逻辑非 if(a!=null && a.length()>0){ System.out.println("a不为空"); } } }
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