我在页面中有一个iframe，我希望如果iframe中的任何链接都可以在iframe本身中打开，那么它是否可以在js或php中使用？
代码：
After day 1 you have $2
After day 2 you have $4
After day 3 you have $8
After day 4 you have $16
After day 5 you have $32
After day 6 you have $64
After day 7 you have $128
After day 8 you have $256
After day 9 you have $512
After day 10 you have $1024
After day 11 you have $2048
After day 12 you have $4096
After day 13 you have $8192
After day 14 you have $16384
After day 15 you have $32768
After day 16 you have $65536
After day 17 you have $131072
After day 18 you have $262144
After day 19 you have $524288
After day 20 you have $1048576
After day 21 you have $2097152
After day 22 you have $4194304
After day 23 you have $8388608
After day 24 you have $16777216
After day 25 you have $33554432
After day 26 you have $67108864
After day 27 you have $134217728
After day 28 you have $268435456
After day 29 you have $536870912
After day 30 you have $1073741824