時間顯示不出來
為啥我的WINDOW_HEIGHT=0?導致我的時間顯示不出來啊？
window.onload = function (){
??? WINDOW_WIDTH = document.body.clientWidth;
??? WINDOW_HEIGHT = document.body.clientHeight;
??? alert(WINDOW_HEIGHT)
?? ?
??? MARGIN_LEFT = Math.round(WINDOW_WIDTH/10);
??? RADIUS = Math.round(WINDOW_WIDTH*4/5/108)-1;
?? ?MARGIN_TOP = Math.round(WINDOW_WIDTH/5);
?? ?var canvas = document.getElementById("canvas");
?? ?var context = canvas.getContext("2d");
2017-12-22
? WINDOW_WIDTH = window.screen.width;
??? WINDOW_HEIGHT = window.screen.height ;
這個更準確? 不用撐開dom節點就能用
2017-12-22
??? WINDOW_WIDTH = document.documentElement.clientWidth;
??? WINDOW_HEIGHT = document.documentElement.clientHeight;
2017-04-12
你沒有把body撐開，將body或者html設置為100%，再把canvas的高度設為100%