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解决VUE相关报错问题，“TypeError: Cannot read property ‘_wrapper’ of undefined”报错信息vue.js:635 [Vue warn]: Invalid handler for event "change": got undefined(found in <Root>)[Vue warn]: Error in nextTick: "TypeError: Cannot read property '_wrapper' of undef

οncοntextmenu="return false" 禁止右键代码html使用javascript使用代码οncοntextmenu="return false" //禁止右键onselectstart="return false" //禁止选取oncopy = "return false" // 禁止复制oncut = "return false" //禁止剪贴onpaste = "return false" //禁止粘贴οndragstart="return false" //禁止拖放