const util = require('../../utils/util.js')const rpn = require('../../utils/rpn.js')Page({ data:{ msg:'0', id1:'AC', id2:'+/-', id3:'%', id4:'÷', id5:'7', id6:'8', id7:'9', id8:'*', id9:'4', id10:'5', id11:'6', id12:'-', id13:'1', id14:'2', id15:'3', id16:'+', id17:'0', id18:'.', id19:'=', }, getContent:function(e){ var id = e.target.id; var initData = this.data.msg; if (id == this.data.id1){ this.setData({ msg: 0 }); }else if( id == this.data.id2){//取反 if (initData == "0"){ return } var firstWord = initData.charAt(0); if (firstWord == "-"){ initData = initData.substr(1); }else{ initData = "-" + initData; } this.setData({ msg: initData }); }else if(id == this.data.id3){//百分比運算 if (initData == 0){ return; }else{ initData = initData/100; this.setData({ msg: initData }); } }else if( id == this.data.id19){ //如果只有一個數字且是0，則直接返回 if( initData == 0){ return; } //判斷最後一位是否為是有效數字 var lastWord = initData.charAt(initData.length - 1); if (isNaN(lastWord)) { return; } var calData = rpn.calCommonExp(initData); console.log(calData); this.setData({ msg: calData }); } else{ var total; if (initData == 0){ total = id } else{ total = initData + id; } this.setData({ msg: total }); } }})