小编use*_*583的帖子

为什么我不能findViewById在这个文件中使用？

Regfragment:

import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;


public class RegFragment extends Fragment {

EditText text1,text2,text3;
Button btn1;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.reg_layout, container, false);

    return rootView;


}
}

然后我试着这样做:

import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;


public class RegFragment extends Fragment {

EditText text1,text2,text3;
Button btn1;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, …

这是我的上市:

procedure TForm1.Button1Click(Sender: TObject);
var
  i: Integer;
  x1, x2, x3, xl, xr, xm, hasil, hasil2: Real;
begin
  xl := StrToFloat(Edit1.Text);
  xr := StrToFloat(Edit2.Text);
  x1 := F1(xl);
  x2 := F1(xr);
  hasil := x1 * x2;
  if hasil > 0 then
  begin
    ShowMessage('Try Again....!!!');
    Edit1.Clear;
    Edit2.Clear;
  end
  else
  begin
    i := 1;
    repeat
      xm := (xl + xr) / 2;
      x3 := F1(xm);
      hasil2 := x1 * x3;
      if hasil2 < 0 then
      begin
        xr := xm;
        x2 := x3;
      end
      else …

如何使用For循环将所有文件*.html复制到*.php？

帮我...

我的脚本:

#!/bin/bash
list="$(ls *.html)"
for i in "$list"
do
  newname=$(ls "$i" | sed -e 's/html/php/')
  cat beginfile > "$newname"
  cat "$i" | sed -e '1,26d' | tac | sed -e '1,21d' | tac >> "$newname"
  cat endfiel >> "$newname"
done

或者你有另一个想法？