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inkscape linux svg

  1. Open Inkscape.
  2. Choose "File - Import" to import a bitmap file.
  3. Choose to "embed" the image.
  4. Select the image with the select tool (↖).
  5. Select Path - Trace Bitmap... for settings (below shown for 2 colors = "Scans"):
    enter image description here
  6. Select "Update" for a preview until settings are fine.
  7. Start tracing with "OK".
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android hide actionbar

public class MainActivity extends Activity { ActionBar actionBar; //声明ActionBar @Override protected void onCreate( Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView( R .layout.activity_main); actionBar = getSupportActionBar(); //得 到ActionBar actionBar.hide(); //隐藏ActionBar } }
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go url encoding

func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits. func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits.
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