有如下类似的字符串 ($目标值+$权重-0.2)*100/20+10 能通过正则表达式将其分成如下数组
"目标值","+","权重","-","0.2",")","*","100","/","20","+","10"
格式吗?
有个思路
1、先去掉$符号 生成 (目标值+权重-0.2)*100/20+10
2、匹配字符串当遇到(、)、+、-、*、\、汉字、数字时在其后面加“ ,” 生成:(,目标值,+,权重,-,0.2,),*,100,/,20,+,10,
3、去掉末尾的“,”,再用split(',')分组
"目标值","+","权重","-","0.2",")","*","100","/","20","+","10"
格式吗?
有个思路
1、先去掉$符号 生成 (目标值+权重-0.2)*100/20+10
2、匹配字符串当遇到(、)、+、-、*、\、汉字、数字时在其后面加“ ,” 生成:(,目标值,+,权重,-,0.2,),*,100,/,20,+,10,
3、去掉末尾的“,”,再用split(',')分组
var result=yourhtml.replace('$','').split(reg);
s = s.replace(/\$/g, ''); //去掉$符号
var ar = s.split('');function in_array(k, arr) {
for (var i = 0; i < arr.length; i ++) if (arr[i].toString() == k) return true;
return false;
}var sep = ['(', ')', '+', '-', '*', '/'];var result = [], flag = false; //flag变量指示上一个字符是否为分隔符
for (var i = 0; i < ar.length; i ++) {
if (in_array(ar[i], sep)) {
result.push(ar[i]);
flag = true;
}
else {
if (flag) result.push(ar[i]);
else result.length == 0 ? result.push(ar[i]) : result[result.length - 1] += ar[i].toString();
flag = false;
}
}alert(result);