HaveYuan

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```js //第1题 let strTel1 = '13208033621 '; strTel1 = strTel1.replace(/(^\s*)|(\s*$)/g, ""); //第2题 //zxx: 只有全角才变化哦,不是任意字符哟~ let strTel2 = '13208033621'; let newStrTel = change(strTel2); function change(strTel) { let newNum = ''; for(let...

```js //第1题 function telTrim(str) { console.log(str) if(!str) return ; let newStr = str.replace(/\s|-/g,''), reg = /^[0-9]+.?[0-9]*$/; if(newStr.toString().length == 11 && reg.test(newStr)) { return newStr; }else { return str; } }...