条件运算符表达式?1表达式2:表达式3单分支结构开始→输入成绩 int score→提示int main(){int score;if( )print()课堂练习include stdio.hint main(){float a,b,sun;printf(请输入数据1和数据2);scanf(%f%f,a,b);sumab;prinft(sum is %f\n,sum);return 0;}if语句分支结构单分支结构开始→输入成绩 int score→提示int main(){int score;if( )print()进阶if(score60){ printf(及格)printf(成绩:%d,score);}if双分支结构基本形式伪代码if( )语句1else语句2完整代码include stdio.hint main(){int score;scanf(%d,score);if(score60)printf(成绩及格\n);elseprintf(成绩不及格\n);return 0;}#include stdio.int main(){int a,b;printf(请输入数据1与2\n);scanf(%d%d,a,b);if(ab)printf(a,%d\n,a);elseprintf(b,%d\n,b);renturn 0;}假设法#include stdio.hint main(){int a,b,max;scanf(%d%d,a,b);maxa;if(maxa);maxb;printf(max is %d,max);return 0;}采用锯齿形课后练习#include stdio.hint main(){int a,b;printf(请输入ab的值:\n);scanf(%d %d,a,b) ;if(a0b0){printf(1\n);}else if(a0b0){printf(2\n);}else if(a0b0){printf(3\n);}else if(a0b0){printf(4\n);}else{printf(不属于四个象限之内);}return 0;}