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                                            Fanyun

字符串转换整数 (atoi)

const atoi = (str) => { const trimStr = str.replace(/(^\s*)|(\s*$)/g, '') if(!/^[\d|-]/g.test(trimStr)) return 0 const matchStr = /(-)?\d+/g.exec(trimStr) const result = parseInt(matchStr) if(result < 0 && result < -(2 **...