\u8868\u5355\u662f\u7f51\u9875\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u7ec4\u4ef6\uff0c\u672c\u8282\u8bfe\u6211\u4eec\u6765\u770b\u770b\u5728React\u4e2d\u5982\u4f55\u5904\u7406\u8868\u5355\uff0c\u9996\u5148\u6211\u4eec\u5148\u6765\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u8868\u5355\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n
import React from 'react';\n\nconst MyForm = () => {\n return (\n <form>\n <div>\n \u7528\u6237\u540d <input type=\"text\"\/>\n <\/div>\n <div>\n \u5bc6\u7801 <input type=\"password\"\/>\n <\/div>\n <div>\n \u7535\u5b50\u90ae\u4ef6 <input type=\"email\"\/>\n <\/div>\n\n <div>\n <button>\u63d0\u4ea4<\/button>\n <\/div>\n <\/form>\n );\n};\n\nexport default MyForm;\n<\/code><\/pre>\n\n\n\n\u9996\u5148\u4f7f\u7528React\u5b9a\u4e49\u8868\u5355\u548c\u4e4b\u524d\u4f20\u7edf\u7f51\u9875\u4e2d\u7684\u8868\u5355\u6709\u4e00\u4e9b\u533a\u522b\uff0c\u4f20\u7edf\u7f51\u9875\u4e2dform\u9700\u8981\u6307\u5b9aaction\u548cmethod\u4e24\u4e2a\u5c5e\u6027\uff0c\u800c\u8868\u5355\u9879\u4e5f\u5fc5\u987b\u8981\u6307\u5b9aname\u5c5e\u6027\uff0c\u8fd9\u4e9b\u5c5e\u6027\u90fd\u662f\u63d0\u4ea4\u8868\u5355\u6240\u5fc5\u987b\u7684\u3002\u4f46\u662f\u5728React\u4e2d\u5b9a\u4e49\u8868\u5355\u65f6\uff0c\u8fd9\u4e9b\u5c5e\u6027\u901a\u901a\u90fd\u53ef\u4ee5\u4e0d\u6307\u5b9a\uff0c\u56e0\u4e3aReact\u4e2d\u7684\u8868\u5355\u6240\u6709\u7684\u529f\u80fd\u90fd\u9700\u8981\u901a\u8fc7\u4ee3\u7801\u6765\u63a7\u5236\uff0c\u5305\u62ec\u83b7\u53d6\u8868\u5355\u503c\u548c\u63d0\u4ea4\u8868\u5355\uff0c\u6240\u4ee5\u8fd9\u4e9b\u4e1c\u897f\u90fd\u53ef\u4ee5\u5728\u51fd\u6570\u4e2d\u6307\u5b9a\u5e76\u901a\u8fc7AJAX\u53d1\u9001\u8bf7\u6c42\uff0c\u65e0\u9700\u76f4\u63a5\u5728\u8868\u5355\u4e2d\u8bbe\u7f6e\u3002<\/p>\n\n\n\n
\u9996\u5148\u6211\u4eec\u6765\u7814\u7a76\u4e00\u4e0b\u5982\u4f55\u83b7\u53d6\u8868\u5355\u4e2d\u7684\u7528\u6237\u6240\u586b\u5199\u7684\u5185\u5bb9\uff0c\u8981\u83b7\u53d6\u7528\u6237\u6240\u586b\u5199\u7684\u5185\u5bb9\u6211\u4eec\u5fc5\u987b\u8981\u76d1\u542c\u8868\u5355onChange\u4e8b\u4ef6\uff0c\u5728\u8868\u5355\u9879\u53d1\u751f\u53d8\u5316\u65f6\u83b7\u53d6\u5176\u4e2d\u7684\u5185\u5bb9\uff0c\u5728\u54cd\u5e94\u51fd\u6570\u4e2d\u901a\u8fc7\u4e8b\u4ef6\u5bf9\u8c61\u7684target.value\u6765\u83b7\u53d6\u7528\u6237\u586b\u5199\u7684\u5185\u5bb9\u3002\u4e8b\u4ef6\u54cd\u5e94\u51fd\u6570\u5927\u6982\u662f\u8fd9\u4e2a\u6837\u5b50\uff1a<\/p>\n\n\n\n
const nameChangeHandler= e => {\n \/\/e.target.value \u8868\u793a\u5f53\u524d\u7528\u6237\u8f93\u5165\u7684\u503c\n};<\/code><\/pre>\n\n\n\n\u7136\u540e\u6211\u4eec\u518d\u5c06\u8be5\u51fd\u6570\u8bbe\u7f6e\u4e3ainput\u5143\u7d20\u7684onChange\u4e8b\u4ef6\u7684\u54cd\u5e94\u51fd\u6570\uff1a<\/p>\n\n\n\n
<div>\n \u7528\u6237\u540d <input type=\"text\" onChange={nameChangeHandler}\/>\n<\/div><\/code><\/pre>\n\n\n\n\u8fd9\u6837\u4e00\u6765\u5f53\u7528\u6237\u8f93\u5165\u5185\u5bb9\u65f6\uff0cnameChangeHandler\u5c31\u4f1a\u88ab\u89e6\u53d1\uff0c\u4ece\u800c\u901a\u8fc7e.target.value\u6765\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u503c\u3002\u901a\u5e38\u6211\u4eec\u8fd8\u4f1a\u4e3a\u8868\u5355\u9879\u521b\u5efa\u4e00\u4e2astate\u7528\u6765\u5b58\u50a8\u503c\uff1a<\/p>\n\n\n\n
const [inputName, setInputName] = useState(''); \nconst nameChangeHandler = e => {\n \/\/e.target.value \u8868\u793a\u5f53\u524d\u7528\u6237\u8f93\u5165\u7684\u503c\n setInputName(e.target.value);\n };<\/code><\/pre>\n\n\n\n\u4e0a\u4f8b\u4e2d\u7528\u6237\u540d\u5b58\u50a8\u5230\u4e86\u53d8\u91cfinputName\u4e2d\uff0cinputName\u4e5f\u4f1a\u8bbe\u7f6e\u4e3a\u5bf9\u5e94\u8868\u5355\u9879\u7684value\u5c5e\u6027\u503c\uff0c\u8fd9\u6837\u4e00\u6765\u5f53inputName\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u8868\u5355\u9879\u4e2d\u7684\u5185\u5bb9\u4e5f\u4f1a\u968f\u4e4b\u6539\u53d8\uff1a<\/p>\n\n\n\n
<div>\n \u7528\u6237\u540d <input type=\"text\" onChange={nameChangeHandler} value={inputName}\/>\n<\/div><\/code><\/pre>\n\n\n\n\u5982\u6b64\u8bbe\u7f6e\u540e\uff0c\u5f53\u7528\u6237\u8f93\u5165\u5185\u5bb9\u540e\u4f1a\u89e6\u53d1onChange\u4e8b\u4ef6\u4ece\u800c\u8c03\u7528nameChangeHandler\u51fd\u6570\uff0c\u5728\u51fd\u6570\u5185\u90e8\u8c03\u7528\u4e86setInputName\u8bbe\u7f6e\u4e86\u7528\u6237\u8f93\u5165\u7684\u7528\u6237\u540d\u3002\u6362\u53e5\u8bdd\u8bf4\u7528\u6237\u5728\u8868\u5355\u4e2d\u8f93\u5165\u5185\u5bb9\u4f1a\u5f71\u54cd\u5230state\u7684\u503c\uff0c\u540c\u65f6\u5f53\u6211\u4eec\u4fee\u6539state\u7684\u503c\u65f6\uff0c\u7531\u4e8e\u8868\u5355\u9879\u7684value\u5c5e\u6027\u503c\u6307\u5411\u4e86state\uff0c\u8868\u5355\u4e5f\u4f1a\u968fstate\u503c\u4e00\u8d77\u6539\u53d8\u3002\u8fd9\u79cd\u7ed1\u5b9a\u65b9\u5f0f\u6211\u4eec\u79f0\u4e3a\u53cc\u5411\u7ed1\u5b9a\uff0c\u5373\u8868\u5355\u4f1a\u6539\u53d8state\uff0cstate\u4e5f\u53ef\u4ee5\u6539\u53d8\u8868\u5355\uff0c\u5728\u5f00\u53d1\u4e2d\u4f7f\u7528\u53cc\u5411\u7ed1\u5b9a\u7684\u8868\u5355\u9879\u662f\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n\n\n\n
\u90a3\u4e48\u8868\u5355\u7684\u63d0\u4ea4\u8981\u5982\u4f55\u5904\u7406\u5462\uff1f\u8868\u5355\u63d0\u4ea4\u540c\u6837\u9700\u8981\u901a\u8fc7\u4e8b\u4ef6\u6765\u5904\u7406\uff0c\u63d0\u4ea4\u8868\u5355\u7684\u4e8b\u4ef6\u901a\u8fc7form\u6807\u7b7e\u7684onSubmit\u4e8b\u4ef6\u6765\u7ed1\u5b9a\uff0c\u5904\u7406\u8868\u5355\u7684\u65b9\u5f0f\u56e0\u60c5\u51b5\u800c\u5df2\uff0c\u4f46\u662f\u4e00\u5b9a\u8981\u6ce8\u610f\uff0c\u5fc5\u987b\u8981\u53d6\u6d88\u9ed8\u8ba4\u884c\u4e3a\uff0c\u5426\u5219\u4f1a\u89e6\u53d1\u8868\u5355\u7684\u9ed8\u8ba4\u63d0\u4ea4\u884c\u4e3a\uff1a<\/p>\n\n\n\n
const formSubmitHandler = e => {\n e.preventDefault();\n \/*\n * username : inputName\n * password : pwdInput\n * email : inputEmail \n * *\/\n};<\/code><\/pre>\n\n\n\n\u4e3a\u8868\u5355\u7ed1\u5b9a\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n
<form onSubmit={formSubmitHandler}>\n......\n<\/form><\/code><\/pre>\n\n\n\n\u5982\u6b64\u6211\u4eec\u4fbf\u6709\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u8868\u5355\u6848\u4f8b\uff0c\u5b8c\u6574\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
import React, {useState} from 'react';\n\nconst MyForm = () => {\n\n const [inputName, setInputName] = useState('');\n const [inputPwd, setInputPwd] = useState('');\n const [inputEmail, setInputEmail] = useState('');\n const nameChangeHandler = e => {\n setInputName(e.target.value);\n };\n\n const pwdChangeHandler = e => {\n setInputPwd(e.target.value)\n };\n\n const emailChangeHandler = e => {\n setInputEmail(e.target.value)\n };\n\n const formSubmitHandler = e => {\n e.preventDefault();\n \/*\n * username : inputName\n * password : pwdInput\n * email : inputEmail\n * *\/\n };\n\n return (\n <form onSubmit={formSubmitHandler}>\n <div>\n \u7528\u6237\u540d <input type=\"text\" onChange={nameChangeHandler} value={inputName}\/>\n <\/div>\n <div>\n \u5bc6\u7801 <input type=\"password\" onChange={pwdChangeHandler} value={inputPwd}\/>\n <\/div>\n <div>\n \u7535\u5b50\u90ae\u4ef6 <input type=\"email\" onChange={emailChangeHandler} value={inputEmail}\/>\n <\/div>\n\n <div>\n <button>\u63d0\u4ea4<\/button>\n <\/div>\n <\/form>\n );\n};\n\nexport default MyForm;<\/pre>\n\n\n\n\u5728\u8fd9\u4e2a\u6848\u4f8b\u4e2d\uff0c\u8868\u5355\u7684\u6240\u6709\u529f\u80fd\u5305\u62ec\u8f93\u5165\u3001\u663e\u793a\u3001\u63d0\u4ea4\u5168\u90e8\u90fd\u7531React\u6240\u5904\u7406\u3002\u8fd9\u79cd\u8868\u5355\u9879\u5728React\u4e2d\u88ab\u79f0\u4e3a\u53d7\u63a7\u7ec4\u4ef6\uff0c\u5373\u8868\u5355\u9879\u53d7React\u63a7\u5236\u3002\u5f53\u7136\u4e5f\u5b58\u5728\u6709\u4e0d\u53d7\u63a7\u7ec4\u4ef6\uff0c\u4f46\u90a3\u79cd\u7ec4\u4ef6\u4f7f\u7528\u673a\u4f1a\u5c11\u4e14\u9700\u8981\u901a\u8fc7\u539f\u751fDOM\u53bb\u64cd\u4f5c\u8868\u5355\uff0c\u5e76\u4e0d\u5efa\u8bae\u4f7f\u7528\uff0c\u6240\u4ee5\u8fd9\u91cc\u4fbf\u4e0d\u518d\u8d58\u8ff0\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8868\u5355\u662f\u7f51\u9875\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u7ec4\u4ef6\uff0c\u672c\u8282\u8bfe\u6211\u4eec\u6765\u770b\u770b\u5728React\u4e2d\u5982\u4f55\u5904\u7406\u8868\u5355\uff0c\u9996\u5148\u6211\u4eec\u5148\u6765\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u8868\u5355\u7ec4\u4ef6\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":5616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[200,202,199,201,203],"_links":{"self":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5614"}],"collection":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5614"}],"version-history":[{"count":4,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5614\/revisions"}],"predecessor-version":[{"id":6381,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5614\/revisions\/6381"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/media\/5616"}],"wp:attachment":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}