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Former-commit-id: 2aebe34392493814e9e04a5b2f5704f31231ed5c
This commit is contained in:
april
2023-06-12 17:12:29 +08:00
parent 57e18b18b1 c123c08843
commit f27ac3a932
1 changed files with 10 additions and 7 deletions
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17
src/views/demo/signature.vue
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@@ -102,14 +102,17 @@ const handleSaveImg = () => {
const dataURLtoFile = (dataurl: string, filename: string) => {
const arr: string[] = dataurl.split(",");
if (!arr.length) return;
const mime = arr[0]?.match(/:(.*?);/)[1];
const bstr = atob(arr[1]);
let n = bstr.length;
const u8arr = new Uint8Array(n);
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
const mime = arr[0].match(/:(.*?);/);
if (mime && !mime.length) {
const bstr = atob(arr[1]);
let n = bstr.length;
const u8arr = new Uint8Array(n);
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
}
return new File([u8arr], filename, { type: mime[0] });
}
return new File([u8arr], filename, { type: mime });
};
// canvas 画图
function paint(