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diy2.py

+i = 1  # 行
+j=0
+# 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
+for i in range(1,10):
+    for j in range(1,(i+1)): 
+        print(j,'x',i,'=',(j*i),end = '   ')
+    print()
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