关于case的小疑问public class SwitchOp1{public static void main(String args[]){float a=9; float b=3; float result=0;char op='+';switch(op){case '+':result=a+b;case '-':result=a-b;case '*':result=a*b;case '/':result=a/b;default:result=0;}System.o
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![关于case的小疑问public class SwitchOp1{public static void main(String args[]){float a=9; float b=3; float result=0;char op='+';switch(op){case '+':result=a+b;case '-':result=a-b;case '*':result=a*b;case '/':result=a/b;default:result=0;}System.o](/uploads/image/z/10128598-70-8.jpg?t=%E5%85%B3%E4%BA%8Ecase%E7%9A%84%E5%B0%8F%E7%96%91%E9%97%AEpublic+class+SwitchOp1%7Bpublic+static+void+main%28String+args%5B%5D%29%7Bfloat+a%3D9%3B+float+b%3D3%3B+float+result%3D0%3Bchar+op%3D%27%2B%27%3Bswitch%28op%29%7Bcase+%27%2B%27%3Aresult%3Da%2Bb%3Bcase+%27-%27%3Aresult%3Da-b%3Bcase+%27%2A%27%3Aresult%3Da%2Ab%3Bcase+%27%2F%27%3Aresult%3Da%2Fb%3Bdefault%3Aresult%3D0%3B%7DSystem.o)
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