<template>
<view class="content">
<view class='water_top'>
<canvas canvas-id='myCanvas' style='width:100%;height:100%'></canvas>
</view>
</view>
</template>
<script>
export default {
onLoad() {
this.drowsyUserinfo()
},
methods: {
drowsyUserinfo() {
var name_xx = '小二';
var ctx = wx.createCanvasContext("myCanvas1");
ctx.rotate(45 * Math.PI / 180); //设置文字的旋转角度,角度为45°;
//对斜对角线以左部分进行文字的填充
for (let j = 1; j < 10; j++) { //用for循环达到重复输出文字的效果,这个for循环代表纵向循环
ctx.beginPath();
ctx.setFontSize(20);
ctx.setFillStyle("rgba(169,169,169,.2)");
ctx.fillText(name_xx, 0, 50 * j);
for (let i = 1; i < 10; i++) { //这个for循环代表横向循环,
ctx.beginPath();
ctx.setFontSize(20);
ctx.setFillStyle("rgba(169,169,169,.2)");
ctx.fillText(name_xx, 80 * i, 50 * j);
}
} //两个for循环的配合,使得文字充满斜对角线的左下部分
//对斜对角线以右部分进行文字的填充逻辑同上
for (let j = 0; j < 10; j++) {
ctx.beginPath();
ctx.setFontSize(20);
ctx.setFillStyle("rgba(169,169,169,.2)");
ctx.fillText(name_xx, 0, -50 * j);
for (let i = 1; i < 10; i++) {
ctx.beginPath();
ctx.setFontSize(20);
ctx.setFillStyle("rgba(169,169,169,.2)");
ctx.fillText(name_xx, 80 * i, -50 * j);
}
}
ctx.draw();
},
}
}
</script>
<style>
.water_top {
position: fixed;
z-index: 1;
opacity: 0.9;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
</style>