wordpress更换域名
UPDATE wp_options SET option_value = replace(option_value, '老域名','新域名') ; UPDATE wp_posts SET post_content = replace(post_content, '老域名','新域名') ; UPDATE wp_comments SET comment_content =…
No module named pip
python -m ensurepip
js循环/重复
requestAnimactionFrame(function(){}) setTimeout(function(){},millisecond) setInterval(function(){},millisecond)
canvas实现画板
//canvas转换成图片下载 document.getElementById("download").onclick=function(){ canvas = document.getElementById("myCanvas"); var dataURL = canvas.toDataURL("image/png"); var a = document.getEl…
js获取浏览器网页宽高
function doAll(){ console.log("网页可见区域宽："+document.body.clientWidth); console.log("网页可见区域高："+document.body.clientHeight); console.log("网页可见区域宽："+document.body.offsetWidt…
canvas绘制图形/图片
绘制图片 drawImage(image,sx,sy,sw,sh,dx,dy,dw,dh)//(sx,sy)截取起点(sw,sh)截取图片的宽高(dx,xy)图片绘制起始点(dw,dh)绘制图片的画布宽高 图形放大 scale(x,y)//x/坐标,y/图形;x|y的值>1放大 x|y的…
canvas绘制文字
//绘制文字 ctx.font = "900 30px Arial";//文本粗细,文本大小,文本样式 //ctx.fillText("hellow word", 120,100); ctx.strokeText("hellow word", 120,100); //文本水平对齐方式 ctx.textAlign = "ce…
