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精品 html web电子称重软件通用socket+SerialPort串口
<input id="txtWeight" type="text" bold;" />
[removed]
var ws;
chengzhong();
function chengzhong(){
ws = new WebSocket("ws://127.0.0.1:9000");
ws.onopen = function(evt) {
console.log("Connection open ...");
ws.send("Hello WebSockets!");
};
var stra="";
ws.onmessage = function(evt) {
var wStr=evt.data;
//var newstr = wStr.substring(0,wStr.length-3); //删除字符串后三个字符
//var newstrw = newstr.slice(2, newstr.length); //删除字符串前两个字符
//var strxs = newstrw.substr(newstrw.length-1,1);
var strweigh = wStr.substring(0,wStr.length-3); //删除字符串后三个字符
//alert(strweigh);
var result = strweigh.replace(/(.{4})/,"$1.");
document.getElementById("txtWeight").value = Number(result);
console.log("Received Message: " + evt.data);
//ws.close();
};
ws.onclose = function(evt) {
document.getElementById("txtWeight").value="请重启称重软件";
setTimeout(chengzhong,3000);
console.log("Connection closed.");
};
}
2019-04-10
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