{"id":2684,"date":"2023-11-14T14:26:31","date_gmt":"2023-11-14T06:26:31","guid":{"rendered":""},"modified":"2023-11-14T14:26:31","modified_gmt":"2023-11-14T06:26:31","slug":"JavaScript\u8868\u5355\u9a8c\u8bc1","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/2684.html","title":{"rendered":"JavaScript\u8868\u5355\u9a8c\u8bc1"},"content":{"rendered":"<div class=\"titlebox\">\n<h1>JavaScript\u8868\u5355\u9a8c\u8bc1<\/h1>\n<\/div>\n<div class=\"desc\">\n  \u9a8c\u8bc1\u7528\u6237\u63d0\u4ea4\u7684\u8868\u5355\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u7684\u503c\u53ef\u80fd\u4e0d\u5408\u9002\u3002\u56e0\u6b64\uff0c\u5fc5\u987b\u901a\u8fc7\u9a8c\u8bc1\u6765\u9a8c\u8bc1\u7528\u6237\u8eab\u4efd\u3002\n<\/div>\n<div class=\"desc\">\n  JavaScript\u63d0\u4f9b\u4e86\u5728\u5ba2\u6237\u7aef\u9a8c\u8bc1\u8868\u5355\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u6570\u636e\u5904\u7406\u5c06\u6bd4\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1\u66f4\u5feb\u3002\u5927\u591a\u6570Web\u5f00\u53d1\u4eba\u5458\u66f4\u559c\u6b22JavaScript\u8868\u5355\u9a8c\u8bc1\u3002\n<\/div>\n<div class=\"desc\">\n  \u901a\u8fc7JavaScript\uff0c\u6211\u4eec\u53ef\u4ee5\u9a8c\u8bc1\u540d\u79f0\uff0c\u5bc6\u7801\uff0c\u7535\u5b50\u90ae\u4ef6\uff0c\u65e5\u671f\uff0c\u624b\u673a\u53f7\u7801\u548c\u66f4\u591a\u5b57\u6bb5\u3002\n<\/div>\n<h2 class=\" h2\"> JavaScript\u8868\u5355\u9a8c\u8bc1\u793a\u4f8b<\/h2>\n<div class=\"desc\">\n  \u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u9a8c\u8bc1\u540d\u79f0\u548c\u5bc6\u7801\u3002\u540d\u79f0\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u5bc6\u7801\u4e0d\u80fd\u5c11\u4e8e6\u4e2a\u5b57\u7b26\u3002\n<\/div>\n<div class=\"desc\">\n  \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u6b63\u5728\u9a8c\u8bc1\u8868\u5355\u63d0\u4ea4\u65f6\u7684\u8868\u5355\u3002\u5728\u7ed9\u5b9a\u503c\u6b63\u786e\u4e4b\u524d\uff0c\u4e0d\u4f1a\u5c06\u7528\u6237\u8f6c\u53d1\u5230\u4e0b\u4e00\u9875\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> function validateform(){<br> var name=document.myform.name.value;<br> var password=document.myform.password.value;<br> if (name==null || name==\"\"){<br> &nbsp;&nbsp;alert(\"Name can't be blank\");<br> &nbsp;&nbsp;return false;<br> }else if(password.length&lt;6){<br> &nbsp;&nbsp;alert(\"Password must be at least 6 characters long.\");<br> &nbsp;&nbsp;return false;<br> &nbsp;&nbsp;}<br> }<br> &lt;\/script&gt;<br> &lt;body&gt;<br> &lt;form name=\"myform\" method=\"post\" action=\"abc.<span class=\"mediumblue\">jsp\" onsubmit=\"return validateform<\/span>()\" &gt;<br> Name: &lt;input type=\"text\" name=\"name\"&gt;&lt;br\/&gt;<br> Password: &lt;input type=\"password\" name=\"password\"&gt;&lt;br\/&gt;<br> &lt;input type=\"submit\" value=\"register\"&gt;<br> &lt;\/form&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n <script>\n                        function validateform(){  \nvar name=document.myform1.name.value;  \nvar password=document.myform1.password.value;  <\/p>\n<p>if (name==null || name==\"\"){  \n  alert(\"Name can't be blank\");  \n  return false;  \n}else if(password.length<6){  \n  alert(\"Password must be at least 6 characters long.\");  \n  return false;  \n  }  \n}  \n<\/script> <\/p>\n<form name=\"myform1\" method=\"post\" action=\"abc.jsp\" onsubmit=\"return validateform()\">\n   Name:<br \/>\n  <input type=\"text\" name=\"name\"><br \/>\n  <br \/> Password:<br \/>\n  <input type=\"password\" name=\"password\"><br \/>\n  <br \/> <br \/>\n  <input type=\"submit\" value=\"register\"><br \/>\n <\/form>\n<\/div>\n<h2 class=\" h2\"> JavaScript\u91cd\u65b0\u8f93\u5165\u5bc6\u7801\u9a8c\u8bc1<\/h2>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script type=\"text\/javascript\"&gt;<br> function matchpass(){<br> var firstpassword=document.f1.password.value;<br> var secondpassword=document.f1.password2.value;<br> if(firstpassword==secondpassword){<br> return true;<br> }<br> else{<br> alert(\"password must be same!\");<br> return false;<br> }<br> }<br> &lt;\/script&gt;<br> &lt;form name=\"f1\" action=\"register.<span class=\"mediumblue\">jsp\" onsubmit=\"return matchpass<\/span>()\"&gt;<br> Password:&lt;input type=\"password\" name=\"password\" \/&gt;&lt;br\/&gt;<br> Re-enter Password:&lt;input type=\"password\" name=\"password2\"\/&gt;&lt;br\/&gt;<br> &lt;input type=\"submit\"&gt;<br> &lt;\/form&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<h2 class=\" h2\"> JavaScript Number\u9a8c\u8bc1<\/h2>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u4ec5\u9488\u5bf9\u6570\u5b57\u503c\u9a8c\u8bc1\u6587\u672c\u5b57\u6bb5\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u6b63\u5728\u4f7f\u7528isNaN()\u51fd\u6570\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> function validate(){<br> var num=document.myform.num.value;<br> if (isNaN(num)){<br> &nbsp;&nbsp;document.<span class=\"mediumblue\">getElementById<\/span>(\"numloc\").innerHTML=\"Enter Numeric value only\";<br> &nbsp;&nbsp;return false;<br> }else{<br> &nbsp;&nbsp;return true;<br> &nbsp;&nbsp;}<br> }<br> &lt;\/script&gt;<br> &lt;form name=\"myform\" onsubmit=\"return validate()\" &gt;<br> Number: &lt;input type=\"text\" name=\"num\"&gt;&lt;span id=\"numloc\"&gt;&lt;\/span&gt;&lt;br\/&gt;<br> &lt;input type=\"submit\" value=\"submit\"&gt;<br> &lt;\/form&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<h2 class=\" h2\">\u5e26\u6709\u56fe\u50cf\u7684JavaScript\u9a8c\u8bc1<\/h2>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u4ea4\u4e92\u5f0fJavaScript\u8868\u5355\u9a8c\u8bc1\u793a\u4f8b\uff0c\u8be5\u793a\u4f8b\u5728\u8f93\u5165\u6b63\u786e\u6216\u4e0d\u6b63\u786e\u7684\u60c5\u51b5\u4e0b\u663e\u793a\u6b63\u786e\u548c\u4e0d\u6b63\u786e\u7684\u56fe\u50cf\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> function validate(){<br> var name=document.f1.name.value;<br> var password=document.f1.password.value;<br> var status=false;<br> if(name.length&lt;1){<br> document.<span class=\"mediumblue\">getElementById<\/span>(\"nameloc\").innerHTML=<br> \" &lt;img src='unchecked.gif'\/&gt; Please enter your name\";<br> status=false;<br> }else{<br> document.<span class=\"mediumblue\">getElementById<\/span>(\"nameloc\").innerHTML=\" &lt;img src='checked.gif'\/&gt;\";<br> status=true;<br> }<br> if(password.length&lt;6){<br> document.<span class=\"mediumblue\">getElementById<\/span>(\"passwordloc\").innerHTML=<br> \" &lt;img src='unchecked.gif'\/&gt; Password must be at least 6 char long\";<br> status=false;<br> }else{<br> document.<span class=\"mediumblue\">getElementById<\/span>(\"passwordloc\").innerHTML=\" &lt;img src='checked.gif'\/&gt;\";<br> }<br> return status;<br> }<br> &lt;\/script&gt;<br> &lt;form name=\"f1\" action=\"<span class=\"yellow\">#\" onsubmit=\"return validate()\"&gt;<br><\/span> &lt;table&gt;<br> &lt;tr&gt;&lt;td&gt;Enter Name:&lt;\/td&gt;&lt;td&gt;&lt;input type=\"text\" name=\"name\"\/&gt;<br> &lt;span id=\"nameloc\"&gt;&lt;\/span&gt;&lt;\/td&gt;&lt;\/tr&gt;<br> &lt;tr&gt;&lt;td&gt;Enter Password:&lt;\/td&gt;&lt;td&gt;&lt;input type=\"password\" name=\"password\"\/&gt;<br> &lt;span id=\"passwordloc\"&gt;&lt;\/span&gt;&lt;\/td&gt;&lt;\/tr&gt;<br> &lt;tr&gt;&lt;td colspan=\"2\"&gt;&lt;input type=\"submit\" value=\"register\"\/&gt;&lt;\/td&gt;&lt;\/tr&gt;<br> &lt;\/table&gt;<br> &lt;\/form&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<h2 class=\" h2\"> JavaScript\u7535\u5b50\u90ae\u4ef6\u9a8c\u8bc1<\/h2>\n<div class=\"desc\">\n  \u6211\u4eec\u53ef\u4ee5\u501f\u52a9JavaScript\u6765\u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u3002\n<\/div>\n<div class=\"desc\">\n  \u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6ID\u9700\u8981\u9075\u5faa\u8bb8\u591a\u6807\u51c6\uff0c\u4f8b\u5982\uff1a\n<\/div>\n<p><span class=\"line\">\u7535\u5b50\u90ae\u4ef6ID\u5fc5\u987b\u5305\u542b@\u548c\u3002\u5b57\u7b26<\/span><br \/>\n<span class=\"line\"> @\u524d\u540e\u5fc5\u987b\u81f3\u5c11\u6709\u4e00\u4e2a\u5b57\u7b26\u3002<\/span><br \/>\n<span class=\"line\">\u4e4b\u540e\u5fc5\u987b\u81f3\u5c11\u6709\u4e24\u4e2a\u5b57\u7b26\u3002 (\u70b9)\u3002<\/span> <\/p>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u5b57\u6bb5\u7684\u7b80\u5355\u793a\u4f8b\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> function validateemail()<br> {<br> var x=document.myform.email.value;<br> var atposition=x.<span class=\"mediumblue\">indexOf<\/span>(\"@\");<br> var dotposition=x.<span class=\"mediumblue\">lastIndexOf<\/span>(\".\");<br> if (atposition&lt;1 || dotposition&lt;atposition+2 || dotposition+2&gt;=x.length){<br> &nbsp;&nbsp;alert(\"Please enter a valid e-mail address \\n atpostion:\"+atposition+\"\\n dotposition:\"+dotposition);<br> &nbsp;&nbsp;return false;<br> &nbsp;&nbsp;}<br> }<br> &lt;\/script&gt;<br> &lt;body&gt;<br> &lt;form name=\"myform\" method=\"post\" action=\"<span class=\"yellow\">#\" onsubmit=\"return validateemail();\"&gt;<br><\/span> Email: &lt;input type=\"text\" name=\"email\"&gt;&lt;br\/&gt;<br> &lt;input type=\"submit\" value=\"register\"&gt;<br> &lt;\/form&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u8f93\u51fa\uff1a\n<\/div>\n<div class=\"result\">\n <script>\n                        function validateemail()  {  \n                    var x=document.myform.email.value;\nvar atposition=x.indexOf(\"@\");\nvar dotposition=x.lastIndexOf(\".\");\nif (atposition<1 || dotposition<atposition+2 || dotposition+2>=x.length){\n    alert(\"Please enter a valid e-mail address \\n atpostion:\"+atposition+\"\\n dotposition:\"+dotposition);\n    return false;\n    }\n    }\n    <\/script> <\/p>\n<form name=\"myform\" method=\"post\" action=\"#\" onsubmit=\"return validateemail();\">\n   Email:<br \/>\n  <input type=\"text\" name=\"email\"><br \/>\n  <br \/> <br \/>\n  <input type=\"submit\" value=\"register\"><br \/>\n <\/form>\n<\/div>\n","protected":false},"excerpt":{"rendered":"JavaScript\u8868\u5355\u9a8c\u8bc1zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[],"class_list":["post-2684","post","type-post","status-publish","format-standard","hentry","category-javascript-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2684"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=2684"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2684\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=2684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=2684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=2684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}