QQ734821120的博客

1.查找子字符串问题：For a given source string and a target string, you should output thefirstindex(from 0) of target string in source string.If target does not exist in source, just return-1.算法要求：输入源字...

private subStringIndex(source:string,target:string):number{ if(target.length>source.length||!source||!target){ return -1; } let res=-1; for(let i=0;...