canvas.getImageData获取数据异常
var c = wx.createCanvas();
var cxt = c.getContext(“2d”);
cxt.fillStyle = “#FF0000”;
cxt.fillRect(0, 0, 150, 75);
console.log(cxt.getImageData(0, 0, 200, 100))
var c = wx.createCanvas();
var cxt = c.getContext(“2d”);
cxt.fillStyle = “#FF0000”;
cxt.fillRect(0, 0, 150, 75);
console.log(cxt.getImageData(0, 0, 200, 100))