5回答

• 

  蒹葭苍沧

  2021-02-25 16:15:22

  哦哦，我试试，谢谢啦

  0 0
• 

  weixin_慕侠1190673

  2021-02-23 09:13:34

  var tangram=[

          {p:[{x:0,y:0},{x:800,y:0},{x:400,y:400}],color:'#caff67'},

          {p:[{x:0,y:0},{x:400,y:400},{x:0,y:800}],color:'#67becf'},

          {p:[{x:800,y:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:'ef3d6q'},

          {p:[{x:600,y:200},{x:600,y:600},{x:400,y:400}],color:'#f9f51a'},

          {p:[{x:400,y:400},{x:600,y:600},{x:400,y:800},{x:200,y:600}],color:"#a594c0"},

          {p:[{x:200,y:600},{x:400,y:800},{x:0,y:800}],color:"#fa83cc"},

          {p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"},

      ];

      window.onload=function(){

          var canvas=document.getElementById('canvas');

          canvas.width=800;

          canvas.height=800;

          var context=canvas.getContext('2d');

          for(var i=0;i<tangram.length;i++){

              draw(tangram[i],context);

          }

  
  

      }

      function draw(place,cxt){

          cxt.beginPath();

          cxt.moveTo(place.p[0].x,place.p[0].y);

          for(var i=1;i<place.p.length;i++){

              cxt.lineTo(place.p[i].x,place.p[i].y);

          }

          cxt.fillStyle=place.color;

          cxt.closePath();

          cxt.fill();

          cxt.strokeStyle='#000';

          cxt.lineWidth=3;

          cxt.stroke();

      }

  这样就可以了

  
  

  0 0
• 

  蒹葭苍沧

  2021-01-27 08:53:17

  可以了，一般for循环有{}呀，为啥这里加上{}就不行了，也没多写啊

  0 0
• 

  蒹葭苍沧

  2021-01-25 16:59:18

  还是不行哎

  
  

  1 0

  qq_慕码人...

  不可能啊 我用你的代码 把{}去掉就好了啊 for (var i = 1; i < place.p.length; i++) cxt.lineTo(place.p[i].x, place.p[i].y);

  2021-01-26 20:36:09

  共 1 条回复 >

• 

  qq_慕码人3188746

  2021-01-23 16:44:31

  把你函数draw（）里面的for下面的{}删了，不带{}只执行cxt.lineTo(place.p[i].x,place.p[i].y);

  1 1

  蒹葭苍沧

  谢谢呀，我试试

  2021-01-23 17:34:43

  共 1 条回复 >