生成一個names的StringBuilder來放名字
StringBuilder namesBuilder=new StringBuilder("");
新增字串連接
namesBuilder.append("Deyu");
namesBuilder.append(",");
namesBuilder.append("Johny");
String abc = namesBuilder.toString();
//abc = "Deyu,Johny"
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生成一個names的StringBuilder來放名字
StringBuilder namesBuilder=new StringBuilder("");
新增字串連接
namesBuilder.append("Deyu");
namesBuilder.append(",");
namesBuilder.append("Johny");
String abc = namesBuilder.toString();
//abc = "Deyu,Johny"