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diy2.py

-i = 5   # 行
-j = 3   # 列
-# 使用变量i和j，代替乘法算式里面的元素，打印出单个乘法算式
-print(j,"*",i,"=",j*i)
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+# i = 7   # 行
+# j = 5   # 列
+# # 使用变量i和j，代替乘法算式里面的元素，打印出单个乘法算式
+# print(j,"*",i,"=",j*i)
+#1*9=9   2*9=18 3*9=27 4*9=36
+for i in range(1,10):#[1,2,3,4,5,6,7,8,9]
+    for j in range(1,i+1):
+        print(j,"*",i,"=",j*i,end=" ")
+    print()
+
+
+
+# i=1  #行
+# for j in range(1,10):
+#     print(j,"*",i,"=",j*i,end=" ")
+# #1*2=2  2*2=4 3*2=6 4*2=8 5*2=10
+# print()
+
+
+# i=2
+# for j in range(1,10):
+#     print(j,"*",i,"=",j*i,end=" ")
+# print()
+
+
+# i=3
+# for j in range(1,10):
+#     print(j,"*",i,"=",j*i,end=" ")
+# print()
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