第1个回答 2013-08-11
append可以填许多种型,
StringBuilder append(double d)
StringBuilder append(float f)
StringBuilder append(int i)
StringBuilder append(long lng)
StringBuilder append(Object obj)
StringBuilder append(String str)
举例如下:
public static final String sample() {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 10; i++) {
sb.append(i); sb.append(',');
}
return sb.toString();
}