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                         5. Number 
- /*随机数范围*/ 
 - random (min, max) { 
 -     if (arguments.length === 2) { 
 -         return Math.floor(min + Math.random() * ( (max+1) - min )) 
 -     }else{ 
 -         return null; 
 -     } 
 -  
 - } 
 -  
 - /*将阿拉伯数字翻译成中文的大写数字*/ 
 - numberToChinese (num) { 
 -     var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十"); 
 -     var BB = new Array("", "十", "百", "仟", "萬", "億", "点", ""); 
 -     var a = ("" + num).replace(/(^0*)/g, "").split("."), 
 -         k = 0, 
 -         re = ""; 
 -     for(var i = a[0].length - 1; i >= 0; i--) { 
 -         switch(k) { 
 -             case 0: 
 -                 re = BB[7] + re; 
 -                 break; 
 -             case 4: 
 -                 if(!new RegExp("0{4}//d{" + (a[0].length - i - 1) + "}$") 
 -                     .test(a[0])) 
 -                     re = BB[4] + re; 
 -                 break; 
 -             case 8: 
 -                 re = BB[5] + re; 
 -                 BB[7] = BB[5]; 
 -                 k = 0; 
 -                 break; 
 -         } 
 -         if(k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0) 
 -             re = AA[0] + re; 
 -         if(a[0].charAt(i) != 0) 
 -             re = AA[a[0].charAt(i)] + BB[k % 4] + re; 
 -         k++; 
 -     } 
 -  
 -     if(a.length > 1) // 加上小数部分(如果有小数部分) 
 -     { 
 -         re += BB[6]; 
 -         for(var i = 0; i < a[1].length; i++) 
 -             re += AA[a[1].charAt(i)]; 
 -     } 
 -     if(re == '一十') 
 -         re = "十"; 
 -     if(re.match(/^一/) && re.length == 3) 
 -         re = re.replace("一", ""); 
 -     return re; 
 - } 
 -  
 - /*将数字转换为大写金额*/ 
 - changeToChinese (Num) { 
 -         //判断如果传递进来的不是字符的话转换为字符 
 -         if(typeof Num == "number") { 
 -             Num = new String(Num); 
 -         }; 
 -         Num = Num.replace(/,/g, "") //替换tomoney()中的“,” 
 -         Num = Num.replace(/ /g, "") //替换tomoney()中的空格 
 -         Num = Num.replace(/¥/g, "") //替换掉可能出现的¥字符 
 -         if(isNaN(Num)) { //验证输入的字符是否为数字 
 -             //alert("请检查小写金额是否正确"); 
 -             return ""; 
 -         }; 
 -         //字符处理完毕后开始转换,采用前后两部分分别转换 
 -         var part = String(Num).split("."); 
 -         var newchar = ""; 
 -         //小数点前进行转化 
 -         for(var i = part[0].length - 1; i >= 0; i--) { 
 -             if(part[0].length > 10) { 
 -                 return ""; 
 -                 //若数量超过拾亿单位,提示 
 -             } 
 -             var tmpnewchar = "" 
 -             var perchar = part[0].charAt(i); 
 -             switch(perchar) { 
 -                 case "0": 
 -                     tmpnewchar = "零" + tmpnewchar; 
 -                     break; 
 -                 case "1": 
 -                     tmpnewchar = "壹" + tmpnewchar; 
 -                     break; 
 -                 case "2": 
 -                     tmpnewchar = "贰" + tmpnewchar; 
 -                     break; 
 -                 case "3": 
 -                     tmpnewchar = "叁" + tmpnewchar; 
 -                     break; 
 -                 case "4": 
 -                     tmpnewchar = "肆" + tmpnewchar; 
 -                     break; 
 -                 case "5": 
 -                     tmpnewchar = "伍" + tmpnewchar; 
 -                     break; 
 -                 case "6": 
 -                     tmpnewchar = "陆" + tmpnewchar; 
 -                     break; 
 -                 case "7": 
 -                     tmpnewchar = "柒" + tmpnewchar; 
 -                     break; 
 -                 case "8": 
 -                     tmpnewchar = "捌" + tmpnewchar; 
 -                     break; 
 -                 case "9": 
 -                     tmpnewchar = "玖" + tmpnewchar; 
 -                     break; 
 -             } 
 -             switch(part[0].length - i - 1) { 
 -                 case 0: 
 -                     tmpnewchar = tmpnewchar + "元"; 
 -                     break; 
 -                 case 1: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "拾"; 
 -                     break; 
 -                 case 2: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "佰"; 
 -                     break; 
 -                 case 3: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "仟"; 
 -                     break; 
 -                 case 4: 
 -                     tmpnewchar = tmpnewchar + "万"; 
 -                     break; 
 -                 case 5: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "拾"; 
 -                     break; 
 -                 case 6: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "佰"; 
 -                     break; 
 -                 case 7: 
 -                     if(perchar != 0) tmpnewchar = tmpnewchar + "仟"; 
 -                     break; 
 -                 case 8: 
 -                     tmpnewchar = tmpnewchar + "亿"; 
 -                     break; 
 -                 case 9: 
 -                     tmpnewchar = tmpnewchar + "拾"; 
 -                     break; 
 -             } 
 -             var newchar = tmpnewchar + newchar; 
 -         } 
 -         //小数点之后进行转化 
 -         if(Num.indexOf(".") != -1) { 
 -             if(part[1].length > 2) { 
 -                 // alert("小数点之后只能保留两位,系统将自动截断"); 
 -                 part[1] = part[1].substr(0, 2) 
 -             } 
 -             for(i = 0; i < part[1].length; i++) { 
 -                 tmpnewchar = "" 
 -                 perchar = part[1].charAt(i) 
 -                 switch(perchar) { 
 -                     case "0": 
 -                         tmpnewchar = "零" + tmpnewchar; 
 -                         break; 
 -                     case "1": 
 -                         tmpnewchar = "壹" + tmpnewchar; 
 -                         break; 
 -                     case "2": 
 -                         tmpnewchar = "贰" + tmpnewchar; 
 -                         break; 
 -                     case "3": 
 -                         tmpnewchar = "叁" + tmpnewchar; 
 -                         break; 
 -                     case "4": 
 -                         tmpnewchar = "肆" + tmpnewchar; 
 -                         break; 
 -                     case "5": 
 -                         tmpnewchar = "伍" + tmpnewchar; 
 -                         break; 
 -                     case "6": 
 -                         tmpnewchar = "陆" + tmpnewchar; 
 -                         break; 
 -                     case "7": 
 -                         tmpnewchar = "柒" + tmpnewchar; 
 -                         break; 
 -                     case "8": 
 -                         tmpnewchar = "捌" + tmpnewchar; 
 -                         break; 
 -                     case "9": 
 -                         tmpnewchar = "玖" + tmpnewchar; 
 -                         break; 
 -                 } 
 -                 if(i == 0) tmpnewchar = tmpnewchar + "角"; 
 -                 if(i == 1) tmpnewchar = tmpnewchar + "分"; 
 -                 newchar = newchar + tmpnewchar; 
 -             } 
 -         } 
 -         //替换所有无用汉字 
 -         while(newchar.search("零零") != -1) 
 -             newchar = newchar.replace("零零", "零"); 
 -         newchar = newchar.replace("零亿", "亿"); 
 -         newchar = newchar.replace("亿万", "亿"); 
 -         newchar = newchar.replace("零万", "万"); 
 -         newchar = newchar.replace("零元", "元"); 
 -         newchar = newchar.replace("零角", ""); 
 -         newchar = newchar.replace("零分", ""); 
 -         if(newchar.charAt(newchar.length - 1) == "元") { 
 -             newchar = newchar + "整" 
 -         } 
 -         return newchar; 
 -     }  
 
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