时间显示不出来

源自：5-2 屏幕自适应

时间显示不出来

为啥我的WINDOW_HEIGHT=0?导致我的时间显示不出来啊？

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");

提问者：qq_请叫我曼哥好么_0 2017-04-11 19:16

个回答

FloatingShuYin

2017-12-22 18:38:01

WINDOW_WIDTH = window.screen.width;
WINDOW_HEIGHT = window.screen.height ;
这个更准确不用撑开dom节点就能用

0
FloatingShuYin

2017-12-22 18:26:34

WINDOW_WIDTH = document.documentElement.clientWidth;
WINDOW_HEIGHT = document.documentElement.clientHeight;

0
慕粉1006301048

2017-04-12 21:17:13

你没有把body撑开，将body或者html设置为100%，再把canvas的高度设为100%

0