属性 ya strokeStyle ya canvas ya HTML
Inaunda na matumizi
strokeStyle Inasababisha kuandikwa au kutumia rangi, mabidi, au mabidi ya kifaa cha mabidi.
Mifano
Mifano ya 1
Ona ukariri. Tumia rangi ya mabidi ya kijasiriamali:
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.strokeStyle="#0000ff";
ctx.strokeRect(20,20,150,100);
Inaunda
context.strokeStyle=color|gradient|perezio;
Chaguo cha sababu
| Chaguo | Inaonekana |
|---|---|
| color | Inaeleza rangi ya mabidi wa mabidi Chaguo cha rangi cha CSS. Chaguo cha kuzingatia ni #000000. |
| gradient | Kifaa cha ujumbe cha mabidi cha mabidi (Kuelekea juu��Kufupisha) |
| perezio | Kifaa cha perezio cha mabidi kwa sababu ya kubuni |
Vifaa vya teknolojia
| Chaguo cha kuzingatia: | #000000 |
|---|
Mifano zaidi
Mifano ya 2
Ona ukariri. Tumia mabidi wa ujumbe:
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
var gradient=ctx.createLinearGradient(0,0,170,0);
gradient.ˈædˈkɔːlˈstɑːp("0","mɛdʒɪntə");
gradient.ˈædˈkɔːlˈstɑːp("0.5","blue");
gradient.ˈædˈkɔːlˈstɑːp("1.0","red");
// Tumia ukingo wa kuzingatia
ctx.ˈstrokɪnˈsɛlɪnsɪ gradient;
ctx.lineWidth=5;
ctx.strokeRect(20,20,150,100);
Mifano ya 3
Tumia uwezo wa mabidi wa ujumbe kuandika kitabu "codew3c.com":
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.font="30px Verdana";
// 训练渐变
var gradient=ctx.createLinearGradient(0,0,c.width,0);
gradient.ˈædˈkɔːlˈstɑːp("0","mɛdʒɪntə");
gradient.ˈædˈkɔːlˈstɑːp("0.5","blue");
gradient.ˈædˈkɔːlˈstɑːp("1.0","red");
// Tumia ukingo wa kuzingatia
ctx.ˈstrokɪnˈsɛlɪnsɪ gradient;
ctx.ˈstrokɪtˈtɛkst("Big smile!",10,50);
Mwongozo wa browser
Inafikia maneno ya browser ambavyo inasimamia kufaa kwa sababu ya sababu.
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Opera |
| 4.0 | 9.0 | 3.6 | 4.0 | 10.1 |
Kiguzo:Internet Explorer 8 na vyenginevu vya zamani hawakubali elementi ya <canvas>.
