js保留位和取整
1 //hold是保留位,例,元,角,分 2 //integerType是在保留位的基础上,如果后面有值,向上向下取整 3 calAmount:function(hold,integerType,amount){ 4 if(hold=='YUAN'){ 5 if(integerType=='ROUND'){ 6 //四舍五入 7 return amount.toFixed(0); 8 }else if(integerType=='LASTINTERCEPT'){ 9 //舍0(去掉保留位后面的数字) 10 return parseInt(amount); 11 }else if(integerType=='CARRYOVER'){ 12 //进位 13 return Math.ceil(amount); 14 } 16 }else if(hold=='JIAO'){ 17 if(integerType=='ROUND'){ 18 //四舍五入 19 return amount.toFixed(1); 20 }else if(integerType=='LASTINTERCEPT'){ 21 //舍0 22 var am = amount.toString(); 23 var nu = am.indexOf('.'); 24 if(am.length-nu>2){ 25 var am1 = amount.toFixed(2).toString(); 26 return am1.substring(0,am1.length-1); 27 } 28 return amount; 29 }else if(integerType=='CARRYOVER'){ 30 //进位 31 var am = amount.toString(); 32 var nu = am.indexOf('.'); 33 if(am.length-nu>2){ 34 var am1 = (amount+0.1).toFixed(2).toString(); 35 return am1.substring(0,am1.length-1); 36 } 37 return amount; 38 } 40 }else if(hold=='FEN'){ 41 if(integerType=='ROUND'){ 42 //四舍五入 43 return amount.toFixed(2); 44 }else if(integerType=='LASTINTERCEPT'){ 45 //舍0 46 var am = amount.toString(); 47 var nu = am.indexOf('.'); 48 if(am.length-nu>3){ 49 var am1 = amount.toFixed(3).toString(); 50 return am1.substring(0,am1.length-1); 51 } 52 return amount; 53 }else if(integerType=='CARRYOVER'){ 54 //进位 55 var am = amount.toString(); 56 var nu = am.indexOf('.'); 57 if(am.length-nu>3){ 58 var am1 = (amount+0.01).toFixed(3).toString(); 59 return am1.substring(0,am1.length-1); 60 } 61 return amount; 62 } 64 } 65 }