小技巧
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1 js和java中的不定参数
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小案列（js)
<!doctype html><html><head><script> function add(){ sum=0; for( var i=0;i<arguments.length;i++){ sum=sum+arguments[i]; } return sum; } alert(add(1,3,5));</script></head><body><body></html>
小案列（java)
public class Test{ public static void main(String[] args){ show("a","b"); show("a","b","c"); show("a","b","c","d"); show("a","b","c","d","e"); } public static void show(String...args){ for(String s: args){ System.out.print(s+" "); } System.out.println(); }}
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