Vue常用指令V-model用法

v-model这个指令只能用在, 这些表单元素上，所谓双向绑定，指的就是我们在js中的vue实例中的data与其渲染的dom元素上的内容保持一致，两者无论谁被改变，另一方也会相应的更新为相同的数据。<br /> </p> <pre class="brush:js;"> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <input type="text" v-model='msg'/> <br /> {{msg}} </body> </html> </pre> <pre class="brush:js;"> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <input type="text" v-model='msg'/> <br /> {{msg}} </body> </html></pre> <pre class="brush:js;"> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <input type="text" v-model='msg'/> <br /> <input type="text" v-model='msg'/> <br /> {{msg}} </body> </html> </pre> <pre class="brush:js;"> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <input type="text" v-model='msg'/> <br /> <input type="text" v-model='msg'/> <br /> {{msg}} <br /> {{msg2}} <br /> {{msg3}} <br /> {{arr}} </body> </html></pre> 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