set1()如下更改您的方法,
public void set1(View v){ EditText tv = (EditText) findViewById(R.id.textView1); String text=tv.getText().toString(); tv.setText(text+"1");}
set1()如下更改您的方法,
public void set1(View v){ EditText tv = (EditText) findViewById(R.id.textView1); String text=tv.getText().toString(); tv.setText(text+"1");}