获取input里的值得方法:document.getElementById("").value; 以下是一个简单的if-else循环: 遇到的问题else if 个数是有限制的,可以用switch-case <!DOCTYPE html> 测试年龄 function age(){ var num=document.getElementById('age').value; if(num<=18){ alert("你还未成年") } else if(num<...
else if(score>=80) { alert("良好"); } else if(score>=60) { alert("合格"); } else { alert("不及格"); } alert("再接再厉"); 9if-demo2.html<!DOCTYPE html> Document /* if (条件) { // if结构 } if () { } else { } */ // <18 未成年 >=18 18-30...
一、if基于不同的条件来执行不同的动作 代码语言:javascript 复制 vara=6;if(){}elseif(){}else{}if(a>9){console.log("大于9");}elseif(a>6){console.log("大于6");}elseif(a>6){console.log("大于6");}else{console.log("小于9");}if(a>9){console.log("大于9");}else{} 二、switc...
error(requestErr); } else { writeFile("article.html", body, writeErr => { if (writeErr) { console.error(writeErr); } else { console.log("File written"); } }); } } );Good:import { get } from "request-promise"; import { writeFile } from "fs-extra"; get("https://en....
条件语句，是程序中根据条件是否成立进行选择执行的一类语句，这类语句在实际使用中，难点在于如何准确的...
else : The term 'else' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. Email Notification sent when files added to folder Email SQL query...
{ + title += ': ' + page.year + '/' + page.month; + } else if (is_year()){ + title += ': ' + page.year; + } + } else if (is_category()){ + title = __('category') + ': ' + page.category; + } else if (is_tag()){ + title = __('tag') + ': ' ...
} else if( w.attachEvent ){ w.attachEvent( "onload", function(){ rp.poly(); w.clearInterval( run ); } ); } } // commonjs if( typeof exports !== "undefined" ){ exports.loadCSS = loadCSS; } else { w.loadCSS = loadCSS; } }( typeof global !== "...
Sorry for a detour, but desperation prevails ;o( WIN XP SP3 IE7 VisualStudio 8 (fully updated) .NET all the latest All of a sudden javascript stopped working? Using MSHTA or IE7... FF and Chrome work fine ... Any ideas? It must be...
With the recent Out of Process Iframe changes in the Edge Chromium setup, Is it possible to run is an iframe in mixed mode? We are migrating toward...