C语言计算标准体重：世界卫生组织方法实现

#include <stdio.h>

int main() { int gender; double height, weight, standard_weight;

printf('请输入您的性别（男性请输入1，女性请输入2）：');
scanf('%d', &gender);

printf('请输入您的身高（cm）：');
scanf('%lf', &height);

printf('请输入您的实际体重（kg）：');
scanf('%lf', &weight);

if (gender == 1) {
    standard_weight = (height - 80) * 0.7;
} else if (gender == 2) {
    standard_weight = (height - 70) * 0.6;
} else {
    printf('性别输入有误！\n');
    return 0;
}

printf('您的标准体重为：%.2lfkg\n', standard_weight);

if (weight >= standard_weight * 0.9 && weight < standard_weight * 1.1) {
    printf('您的体重正常。\n');
} else if ((weight >= standard_weight * 0.8 && weight < standard_weight * 0.9) ||
           (weight >= standard_weight * 1.1 && weight < standard_weight * 1.2)) {
    printf('您的体重过轻或过重。\n');
} else if (weight < standard_weight * 0.8) {
    printf('您的体重严重不足。\n');
} else {
    printf('您的体重肥胖。\n');
}

return 0;

}