题解 | #截取字符串#
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
let str = readline() let len = readline() let result = str.substr(0,len) console.log(result)
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
let str = readline() let len = readline() let result = str.substr(0,len) console.log(result)
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