Initial commit: Python learning project with examples and exercises

2025-07-20 17:08:50 +08:00
commit bc7bb56271
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+#4.1.1
+county = input("请输入标准(国际/国内/国内外)：")
+tizhong = eval(input("请输入体重(kg)："))
+shengao = eval(input("请输入身高(cm)："))
+BMI = tizhong/(shengao/100)**2
+a = "国际"
+b = "国内"
+c = "国内外"
+
+if a == county[-2:]:                         #国际标准
+    if 0 <= BMI < 18.5:
+        print("国际偏瘦")
+    elif 18.5 <= BMI < 25:
+        print("国际正常")
+    elif 25 <= BMI < 30:
+        print("国际偏胖")
+    elif BMI >= 30:
+        print("国际肥胖")
+    else:
+        print("输入有误！请重新输入")
+elif b == county[-2:]:                       #国内标准
+    if 0 <= BMI < 18.5:
+        print("国内偏瘦")
+    elif 18.5 <= BMI < 24:
+        print("国内正常")
+    elif 24 <= BMI < 28:
+
+
+        print("国内偏胖")
+    elif BMI >= 28:
+        print("国内肥胖")
+    else:
+        print("输入有误！请重新输入")
+elif c == county[-3:]:                       #国内外标准
+    if 0 <= BMI < 18.5:
+        print("国际偏瘦",end=' ')
+    elif 18.5 <= BMI < 25:
+        print("国际正常",end=' ')
+    elif 25 <= BMI < 30:
+        print("国际偏胖",end=' ')
+    elif BMI >= 30:
+        print("国际肥胖",end=' ')
+
+    if 0 <= BMI < 18.5:
+        print("国内偏瘦")
+    elif 18.5 <= BMI < 24:
+        print("国内正常")
+    elif 24 <= BMI < 28:
+        print("国内偏胖")
+    elif BMI >= 28:
+        print("国内肥胖")
+    else:
+        print("输入有误！请重新输入")
+else:
+    print("输入有误！请重新输入")
+
+