看到帖中有份笔试题,其中部分题目不是很明白,希望明白的大虾可以讲解清楚下:
1.从字符串”ABCDEFGH”里找出”DEF”来2.var str = "abcdefgdafoadfjladsf";
var strmp = str.split("f");
var c = strmp[4]+"5*10"+5*10;
C是多少 3.Var a =[[0,1],[2,3]]
Var b = a[0][1];
Var c = a[0,1]
Var d = [0]
b/c/d是多少
没见过这种表示方法,a,b,c,d都是什么啊
4.var str = new Array(0,1,2,3,4,5,6,7,8,9,10)
var b = str[5]%str[1]
b是多少
1.从字符串”ABCDEFGH”里找出”DEF”来2.var str = "abcdefgdafoadfjladsf";
var strmp = str.split("f");
var c = strmp[4]+"5*10"+5*10;
C是多少 3.Var a =[[0,1],[2,3]]
Var b = a[0][1];
Var c = a[0,1]
Var d = [0]
b/c/d是多少
没见过这种表示方法,a,b,c,d都是什么啊
4.var str = new Array(0,1,2,3,4,5,6,7,8,9,10)
var b = str[5]%str[1]
b是多少
System.out.print(str.sunString(3.6));
int index = s.indexof("DEF");2、 5*10503和4没看到过
String aa = "ABCDEFGH";
aa.substring(3,6);(可以用js)
2.5*1050
3.3(不太明白)
4.0
第三题:b=1;c=2,3;d=0
第四题:b=0
1.var strmp = str.split("f",5);
2.var c = strmp[3]+"5*10"+5*10;当然了,这不是从JS的角度测试的,是将var换成String来看的,希望达人指正!
/**
* 从字符串”ABCDEFGH”里找出”DEF”来
*
*/
function findStr() {
var str = "ABCDEFGH";
var num = str.search("DEF");
if (num > 0) {
alert(true);
}
}function concat() {
var str = "abcdefgdafoadfjladsf";
var strmp = str.split("f");
alert(strmp.length);
for (var i = 0; i < strmp.length; i ++) {
alert(strmp[i]);
}
var c = strmp[4]+"5*10"+5*10;
alert(c); // 5*1050
}function compute() {
var a = [[0,1],[2,3]];
var b = a[0][1];
alert(b); // 1 [0, 1] -- 1
var c = a[0,1];
alert(c);// 2,3
var d = [0];
alert(d); // 0
alert(b/c/d); // NaN
}function compute2() {
var str = new Array(0,1,2,3,4,5,6,7,8,9,10);
var b = str[5]%str[1];
alert(b); // 0
}