C语程序运行结果

main() {int a,b; for(a=1,b=1;a<=100;a++) b="">=20)break; if(b%3==1) {b+=3; continue;} b-=5;}}
main()
{int a,b;
for(a=1,b=1;a<=100;a++)
{if(b>=20)break;
if(b%3==1)
{b+=3;
continue;}
b-=5;}}

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b的值依次是1,4,7,10,13,16,19,22
a是8，b是22

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最后结果是a=8,b=22

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结果a=7,b=22

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for语句后是什么？

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