16 lines
570 B
TypeScript
16 lines
570 B
TypeScript
// 数字图片，然后base64的图片
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export const randomPng = (content: number | string = 1) =>{
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const canvas = document.createElement('canvas');
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const ctx = canvas.getContext('2d')!;
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const size = 128;
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canvas.width = size;
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canvas.height = size;
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ctx.fillStyle = '#'+Math.floor(Math.random()*16777215).toString(16);
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ctx.fillRect(0, 0, size, size);
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ctx.font = 'bold 32px Arial';
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ctx.fillStyle = '#ffffff';
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ctx.textAlign = 'center';
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ctx.textBaseline = 'middle';
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ctx.fillText(content.toString(), size / 2, size / 2);
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return canvas.toDataURL();
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} |